CN110816886A - Wheel cooling device testing system based on LabVIEW and testing method thereof - Google Patents
Wheel cooling device testing system based on LabVIEW and testing method thereof Download PDFInfo
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- CN110816886A CN110816886A CN201911098076.1A CN201911098076A CN110816886A CN 110816886 A CN110816886 A CN 110816886A CN 201911098076 A CN201911098076 A CN 201911098076A CN 110816886 A CN110816886 A CN 110816886A
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- cooling device
- wheel cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Manufacturing & Machinery (AREA)
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- Testing Electric Properties And Detecting Electric Faults (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a LabVIEW-based airplane wheel cooling device testing system which comprises a reinforced case and an embedded controller, wherein the embedded controller runs testing system application software and controls an external power supply excitation source through an SCPI (System configuration protocol); the embedded controller is connected with the data acquisition card and the signal conditioning circuit, and the signal conditioning module is used for receiving and conditioning an input signal from the airplane wheel cooling device; the data acquisition card is used for receiving the measurement data processed by the signal conditioning module and sending the measurement data to the embedded controller; the embedded controller is connected with and controls an external excitation source, a power supply unit and other external equipment, and calculates, analyzes, stores and displays the measured data, the external excitation source sends an excitation signal to the airplane wheel cooling device, the power supply unit supplies power to the airplane wheel cooling device, and the embedded controller sends a control signal to the airplane wheel cooling device; the invention has the advantages of low cost, convenience, easy use, complete functions, high reliability and strong function expansibility.
Description
Technical Field
The invention belongs to the technical field of testing of aircraft wheel cooling devices, and particularly relates to a testing method of a testing system of an aircraft wheel cooling device based on LabVIEW.
Background
At present, in order to guarantee the accuracy and the integrality of the test of the wheel cooling device before being put into use and the stability and the reliability of the use of the whole life cycle after being put into use, and in terms of the characteristics of the device signals, the safety of operators is considered, and the original manual operation cannot meet the current requirements. The test system provided by the invention can completely solve the problem of an automatic test and closed-loop control system of a device test, not only can improve the automation degree and maintainability of the system, but also has the advantages of flexible structure, low development cost, complete functions, high precision, strong function expansibility and the like. The human-computer interaction interface is flexible and easy to operate, and has great advantages compared with the manual operation of the traditional instrument.
Disclosure of Invention
The invention aims to solve the problems and provides a testing method of a LabVIEW-based wheel cooling device testing system, which has the advantages of low cost, convenience, easy use, complete functions, high reliability and strong function expansibility.
In order to achieve the purpose, the invention provides the following technical scheme:
a LabVIEW-based airplane wheel cooling device testing system comprises a reinforced case, wherein an embedded controller is arranged in the reinforced case, test system application software runs on the embedded controller, and an external power supply excitation source is controlled through an SCPI (System configuration protocol); the embedded controller is connected with the data acquisition card and the signal conditioning circuit, and the signal conditioning module is used for receiving and conditioning an input signal from the airplane wheel cooling device; the data acquisition card is used for receiving the measurement data processed by the signal conditioning module and sending the measurement data to the embedded controller; the embedded controller is connected with and controls an external excitation source, a power supply unit and other external equipment, and calculates, analyzes, stores and displays measurement data, the external excitation source sends an excitation signal to the airplane wheel cooling device, the power supply unit supplies power to the airplane wheel cooling device, and the embedded controller sends a control signal to the airplane wheel cooling device;
the test system also comprises a system self-check module, a system initialization module, a system log record module, a user management module, a parameter setting module, a real-time monitoring module, a data analysis module, a data recording module, a data query module, an alarm module and a fault module of the power-on test system.
The testing method of the wheel cooling device testing system based on LabVIEW comprises the following steps:
the embedded controller provides external excitation for the airplane wheel cooling device according to the set external excitation source state;
sending a starting control command communication message to the airplane wheel cooling device;
the airplane wheel cooling device starts to work after receiving the command communication information, and corresponding channels are opened in sequence;
and the test system monitors the state of the device through the output end of the wheel cooling device.
Furthermore, the embedded controller is connected with the data acquisition card through a bus, so that the instruction response of the application software of the test system is realized, the control instruction is issued to an external excitation source and the power supply unit of the airplane wheel cooling device through an RS422 or USB interface, the control instruction of the application software of the test system to the airplane wheel cooling device is responded, and the control instruction is issued to the airplane wheel cooling device through a GPIO interface.
Furthermore, the test system application software is connected with the display and the keyboard and used for responding to the keyboard operation of a user and displaying the operation process, the operation result and the data information on the display in real time.
Furthermore, an AI channel of the data acquisition card is connected with an output channel of the signal conditioning module, and the signal conditioning module is connected with an output signal of the airplane wheel cooling device through an external connector.
Preferably, the external excitation source is an exciter.
Compared with the prior art, the invention has the beneficial effects that:
compared with the existing test system and method, the invention has the capabilities of real-time monitoring, calculation, analysis and display and real-time state data storage. The system not only can improve the automation degree and maintainability of the system, but also has the advantages of flexible structure, low development cost, complete functions, high precision, strong function expansibility and the like. The human-computer interaction interface is flexible and easy to operate, the testing efficiency, stability and accuracy are greatly improved compared with the manual operation of the traditional instrument and a general testing method, and the system complexity and cost are greatly reduced.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the description of the embodiment will be briefly introduced below, it is obvious that the drawings in the following description are only for more clearly illustrating the embodiment of the present invention or the technical solution in the prior art, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a test system according to the present invention;
FIG. 2 is a functional diagram of a test system according to the present invention;
FIG. 3 is a flow chart of a test system of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood and implemented by those skilled in the art, the present invention is further described with reference to the following specific examples, which are provided for illustration only and are not intended to limit the present invention.
The technical scheme adopted by the invention is that a portable reinforced case external structure is adopted, an embedded controller, an AD data acquisition card and an AD conditioning circuit are installed in the case, and test system application software runs in the embedded controller to realize an integral test system. Wherein the portable ruggedized chassis addresses the flexibility and convenience of the overall test system. The application software of the test system runs on the embedded controller and controls an external power supply excitation source to provide a 115V alternating current power supply and a switch of 28.5V direct current of the working voltage of the wheel cooling device through the SCPI.
The embedded controller is connected with the data acquisition card and the signal conditioning module; the signal conditioning module is used for receiving and conditioning an input signal from the airplane wheel cooling device; the data acquisition card is used for receiving the measurement data processed by the signal conditioning module and sending the measurement data to the embedded controller; and the embedded controller is used for controlling external equipment such as an excitation source and the like and calculating, analyzing, storing and displaying the measured data.
The measurement and control method comprises the following steps: the embedded controller provides external excitation for the airplane wheel cooling device according to the set state of the exciter and sends starting control command communication information to the airplane wheel cooling device; and the airplane wheel cooling device starts to work after receiving the command communication information, corresponding channels are opened in sequence, and the test system monitors the state of the device through the output end of the airplane wheel cooling device.
Fig. 1 shows a test system composition diagram: in the system composition, test system application software issues an external excitation source and a control instruction of a power supply unit of the airplane wheel cooling device to the embedded controller by calling a bottom layer driver, and issues a control instruction of the airplane wheel cooling device. The test system application software responds to the keyboard operation of a user and displays information such as an operation process, an operation result, data and the like on a display in real time, so that the man-machine interaction of the user is facilitated.
The embedded controller is connected with the data acquisition card through a bus, mainly realizes the instruction response of the test system software, sends the control instruction to an external excitation source and the power supply unit of the airplane wheel cooling device through an RS422 or USB interface, responds to the control instruction of the application software to the airplane wheel cooling device and sends the control instruction to the airplane wheel cooling device through a GPIO interface.
The AI channel of the data acquisition card is connected with the output channel of the signal conditioning module and is used for acquiring voltage signal data conditioned by the signal conditioning module and sending the voltage signal data to the embedded controller through the bus so as to be calculated, analyzed, stored and displayed by software.
The signal conditioning module is connected with an output signal of the airplane wheel cooling device through an external connector and conditions an input alternating current signal to a signal range which can be identified by a data acquisition card. ,
FIG. 2 is a functional diagram of a test system: the test system mainly comprises functional modules of self system self-check, system initialization, system log recording, user management, parameter setting, real-time monitoring, data analysis, data recording, data query, alarm, fault and the like of the power-on test system.
In order to ensure the correctness and the integrity of the monitored data, the software of the system testing system performs self-checking on a system control computer, a storage space, each module of an acquisition system, alarm, communication and the like during the operation of the system, and displays self-checking results item by item so that a user can visually obtain the self-checking results of the system.
User management is designed for the security of the system and the confidentiality of data. The user management module can realize the functions of login management, user creation, user deletion, password modification, permission change and the like of the user.
The parameter setting module is used for managing and displaying all parameters open to the outside of the system. The user can modify, save and apply the system parameters according to different test requirements.
The alarm module is a functional module which is used for carrying out real-time alarm on abnormal information and fault information when the software of the test system judges whether each index is abnormal or whether the inside of the system is in fault when the system runs according to the calculation result when the real-time monitoring state is carried out.
FIG. 3 is a flow chart of the test system: after the test system is powered on, firstly, in order to ensure the correctness and the integrity of the monitored data, the test system software carries out self-check on the embedded controller, the data acquisition card module, the signal conditioning module, the storage space and the like during the operation of the system, and displays the self-check result so that a user can visually obtain the self-check result of the system.
And after the self-checking of the test system is successful, the system is initialized, and the bottom-layer drive is called to carry out initialization operation on the controller and each module, so that the normal work of the system is ensured. After initialization is completed, the system enters a login interface, and then configuration used by the user at the last time is automatically loaded through user login and content is displayed. After login is successful and configuration loading is completed, the test system software jumps to a main interface, namely a function selection interface, and a user can perform function selection operation, such as modification of test parameters or hardware configuration parameters, namely, the user determines whether configuration information is correct and whether the configuration is applied or not; starting test operation, namely starting to apply the current configuration and starting to carry out automatic test; and data query operation, namely log data query, report data, alarm or fault record data query and the like.
The test system software enters the corresponding function interface by calling the corresponding function interface module according to the user operation, and the user can complete the corresponding operation on the corresponding interface. When the user finishes the operation or tests, the test system software prompts the user whether to continue the operation or not, if so, the user jumps to the function selection interface, if no subsequent operation exists, the system quits and releases all resources, and after the data and the configuration are stored, the system quits and is shut down.
The details of the present invention not described in detail are prior art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A testing system of an airplane wheel cooling device based on LabVIEW is characterized by comprising a reinforced case, wherein an embedded controller is arranged in the reinforced case, test system application software runs on the embedded controller, and the embedded controller controls an external power supply excitation source through SCPI; the embedded controller is connected with the data acquisition card and the signal conditioning circuit, and the signal conditioning module is used for receiving and conditioning an input signal from the airplane wheel cooling device; the data acquisition card is used for receiving the measurement data processed by the signal conditioning module and sending the measurement data to the embedded controller; the embedded controller is connected with and controls an external excitation source, a power supply unit and other external equipment, and calculates, analyzes, stores and displays measurement data, the external excitation source sends an excitation signal to the airplane wheel cooling device, the power supply unit supplies power to the airplane wheel cooling device, and the embedded controller sends a control signal to the airplane wheel cooling device;
the system also comprises a system self-check module, a system initialization module, a system log record module, a user management module, a parameter setting module, a real-time monitoring module, a data analysis module, a data recording module, a data query module, an alarm module and a fault module of the power-on test system.
2. The LabVIEW-based wheel cooling device testing system as claimed in claim 1, wherein the embedded controller is connected with the data acquisition card through a bus to realize instruction response of the testing system application software, issues the control instruction to the external excitation source and the wheel cooling device power supply unit through RS422 or USB interface, responds to the control instruction of the testing system application software to the wheel cooling device, and issues the control instruction to the wheel cooling device through the GPIO interface.
3. The LabVIEW-based wheel cooling unit testing system as claimed in claim 1, wherein the testing system application software is connected with the display and the keyboard, and is used for responding to the keyboard operation of a user and displaying the operation process, operation result and data information on the display in real time.
4. The LabVIEW-based wheel cooling device testing system as claimed in claim 1, wherein the AI channel of the data acquisition card is connected with the output channel of the signal conditioning module, and the signal conditioning module is connected with the output signal of the wheel cooling device through an external connector.
5. The testing method of a LabVIEW-based wheel cooling unit testing system according to any one of claims 1 to 4, comprising the steps of:
the embedded controller provides external excitation for the airplane wheel cooling device according to the set external excitation source state;
sending a starting control command communication message to the airplane wheel cooling device;
the airplane wheel cooling device starts to work after receiving the command communication information, and corresponding channels are opened in sequence;
and the test system monitors the state of the device through the output end of the wheel cooling device.
6. The LabVIEW-based wheel cooling installation testing system of claim 5, wherein said external excitation source is an exciter.
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| CN201911098076.1A CN110816886B (en) | 2019-11-12 | 2019-11-12 | LabVIEW-based machine wheel cooling device testing system and testing method thereof |
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| CN201911098076.1A CN110816886B (en) | 2019-11-12 | 2019-11-12 | LabVIEW-based machine wheel cooling device testing system and testing method thereof |
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| CN110816886B CN110816886B (en) | 2023-05-30 |
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Citations (3)
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| WO2014131282A1 (en) * | 2013-02-27 | 2014-09-04 | 国家电网公司 | Test system for power grid adaptability of mobile wind turbine generator system |
| CN105319463A (en) * | 2015-10-20 | 2016-02-10 | 沈阳航空航天大学 | Onboard ground test simulation exciter |
| CN109634261A (en) * | 2018-12-24 | 2019-04-16 | 中国航空工业集团公司西安飞机设计研究所 | Automatic identification pilot system state and the system and method tested |
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2019
- 2019-11-12 CN CN201911098076.1A patent/CN110816886B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014131282A1 (en) * | 2013-02-27 | 2014-09-04 | 国家电网公司 | Test system for power grid adaptability of mobile wind turbine generator system |
| CN105319463A (en) * | 2015-10-20 | 2016-02-10 | 沈阳航空航天大学 | Onboard ground test simulation exciter |
| CN109634261A (en) * | 2018-12-24 | 2019-04-16 | 中国航空工业集团公司西安飞机设计研究所 | Automatic identification pilot system state and the system and method tested |
Non-Patent Citations (1)
| Title |
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| 王民钢;李仪;郭访社;龚宇迪;: "基于虚拟仪器技术的嵌入式计算机自动测试系统" * |
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