CN110609183A - IVI technology-based identification module and automatic test system of complete machine - Google Patents
IVI technology-based identification module and automatic test system of complete machine Download PDFInfo
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- CN110609183A CN110609183A CN201910764208.3A CN201910764208A CN110609183A CN 110609183 A CN110609183 A CN 110609183A CN 201910764208 A CN201910764208 A CN 201910764208A CN 110609183 A CN110609183 A CN 110609183A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/025—General constructional details concerning dedicated user interfaces, e.g. GUI, or dedicated keyboards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to the technical field of data measurement and control, and discloses an identification module based on an IVI (intelligent interactive interface) technology and an automatic test system of a complete machine, wherein an industrial personal computer, a test instrument set, a signal conditioning box, a simulator, an electromagnetic shielding box, a module to be tested and the complete machine to be tested are arranged in the industrial personal computer; the industrial personal computer is respectively connected with the tester group, the signal conditioning box, the simulator and the tested complete machine and provides control signals; the tester group is in signal connection with the simulator and the tested complete machine through the signal conditioning box; the module to be tested is loaded on the simulator; the simulator is connected with the complete machine to be tested and provides a signal source; the simulator is arranged in an electromagnetic shielding box. The automatic test system can realize automatic test of the module and the whole machine and automatic calibration of the radio frequency link, and can quickly detect various technical indexes of the module and the assembled whole machine; the IVI driver is successfully designed to separate the test program from the hardware, so that the manpower and financial resources are saved, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the field of data measurement and control, in particular to an identification module based on an IVI technology and an automatic test system of a whole machine.
Background
At present, the universal detection mode of 6 types of modules and 2 types of complete machines is manual detection. The 6 types of modules are respectively a transmitter module, a receiver module, a power supply module, an interface management module, a signal processing module 1 and a signal processing module 2; the class 2 machines are respectively an inquiry responder 1 and a responder 2.
The main problems existing in the manual detection are as follows:
in the stages of development and production debugging, a large number of modules need to be tested repeatedly, and the technical state needs to be adjusted; and then the 6 types of modules are loaded into the whole machine, and a plurality of technical indexes still need to be tested. By adopting a traditional manual testing method, the 6 types of modules have dozens of testing indexes, and the 2 types of complete machines have dozens of testing indexes, which are nearly hundred testing indexes in total.
The test is completed by all indexes, a week is needed for a plurality of times, and the test device comprises a loading and unloading connecting piece and a cable, so that the requirement of mass test of a production line cannot be met.
In summary, many test items, complicated test steps, complicated test methods, and human errors easily occur to different testers.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the existing problems, the automatic test system based on the identification module and the complete machine of the IVI technology can save manpower and financial resources, save test time and has high detection efficiency.
The technical scheme adopted by the invention is as follows: an automatic test system of identification module and complete machine based on IVI technique includes: the system comprises an industrial personal computer, a tester group, a signal conditioning box, a simulator, an electromagnetic shielding box, a tested module and a tested complete machine; the signal conditioning box comprises a radio frequency switch matrix, a direction signal simulator and a power supply testing matrix;
the industrial personal computer is respectively connected with the tester group, the signal conditioning box, the simulator and the tested complete machine, provides control signals and performs data control and processing on the whole system;
the tester group is in signal connection with the simulator and the tested complete machine through the radio frequency switch matrix, performs instrument testing on the tested module and the tested component, provides data to the industrial personal computer, and realizes signal communication between the tested module and the tested complete machine as well as the industrial personal computer;
the tested module is loaded on the simulator, and the simulator simulates the signal of the tested module; the simulator is connected with the complete machine to be tested and provides a signal source; the simulator is arranged in an electromagnetic shielding box.
Furthermore, the tester group consists of a program-controlled alternating-current power supply, an oscilloscope, a signal source, a peak power meter, a frequency spectrograph, a voltmeter and an ammeter;
the industrial personal computer is provided with a network switch and a serial port expansion card; the network switch is respectively connected with the signal source, the frequency spectrograph, the peak power meter and the program-controlled alternating current power supply; the signal source provides radio frequency signals for the simulator and the whole machine to be tested through the radio frequency switch matrix; the frequency spectrograph receives and analyzes the frequency spectrum characteristics of the simulator and the whole machine to be tested through the radio frequency switch matrix; the peak power meter tests the radiation power of the simulator and the tested complete machine through a radio frequency switch matrix; the program-controlled alternating current power supply provides power supply required by normal work for the simulator and the tested complete machine through the power supply test matrix; the power supply testing matrix transmits power supply state signals of the simulator and the tested complete machine to the voltmeter and the ammeter;
the serial port expansion card is respectively connected with the oscilloscope, the voltmeter and the ammeter; the oscilloscope tests low-frequency signals of the module to be tested and the complete machine to be tested through the radio frequency switch matrix; the voltmeter and the ammeter receive signals transmitted by the power supply testing matrix and provide the signals to the industrial personal computer; the serial port expansion card is connected with the direction signal simulator, and the direction signal simulator simulates direction information sent by the signal conditioning box and transmits the direction information to the simulator.
Furthermore, the system also comprises an integrated display and a test cabinet, wherein the integrated display, the industrial personal computer and the test instrument are assembled in the test cabinet.
Furthermore, the incoming and outgoing cables of the electromagnetic shielding box adopt a processing mode of respective filtering, and the filtering switching assembly in the electromagnetic shielding box adopts a filtering assembly integrated with an output connector.
Further, the filtering adapter assembly is installed on the top of the cabinet.
Furthermore, the automatic test system also comprises a software part, wherein the software part carries out layered processing and is divided into a physical interface layer, an instrument driving layer, a test software layer and a user application layer;
the physical interface layer provides physical connection between the industrial personal computer and the instrument and comprises an interface control card and a drive program of the interface control card;
the instrument driving layer is an interface for communication between a test program and related instruments such as a test instrument, excitation equipment, a switch network and the like, and can complete control of the test instrument and reading of test data;
the test software layer realizes automatic or manual test of the tested piece;
the user application layer is the top layer of the system software and provides a human-computer operation interface.
Further, an automatic test program is loaded in the industrial personal computer, and the automatic test program comprises the following steps:
step 1: starting test software, automatically entering a user application layer, confirming the user identity according to the user authority by the system, automatically performing initialization work, prompting a user to change an IVI drive in the industrial personal computer if the user does not pass the initialization, loading the IVI drive after the change is finished, and re-initializing the system;
step 2: a user tests or selects a system to automatically calibrate according to the requirement;
and step 3: if automatic calibration is selected, the system transfers an automatic calibration program, and enters a data initial state after the automatic calibration is finished;
and 4, step 4: if the test is selected, prompting a user to select a proper test item according to the tested module and/or the tested complete machine, and automatically loading a test program by the system;
and 5: the system calls a related test program file in combination with the test input condition;
step 6: the system executes the test program and records the test data;
and 7: saving the measured data, making a judgment, and exiting the test
Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: the automatic test of the module and the whole machine and the automatic calibration of a radio frequency link in the system are realized; the system is simple to operate, saves manpower and financial resources and improves the working efficiency.
Drawings
FIG. 1 is a block diagram of the automatic test system of the present system
FIG. 2 is a block diagram showing the software structure of the present system
FIG. 3 is a flow chart of the software automatic test program of the present system
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an automatic test system for an identification module and a complete machine based on IVI technology includes: the system comprises an industrial personal computer, a tester group, a signal conditioning box, a simulator, an electromagnetic shielding box, a tested module and a tested complete machine; the signal conditioning box comprises a radio frequency switch matrix, a direction signal simulator and a power supply testing matrix;
the industrial personal computer is respectively connected with the tester group, the signal conditioning box, the simulator and the tested complete machine, provides control signals and performs data control and processing on the whole system;
the tester group is in signal connection with the simulator and the tested complete machine through the radio frequency switch matrix, performs instrument testing on the tested module and the tested component, provides data to the industrial personal computer, and realizes signal communication between the tested module and the tested complete machine as well as the industrial personal computer;
the tested module is loaded on the simulator, and the simulator simulates the signal of the tested module; the simulator is connected with the complete machine to be tested and provides a signal source; the simulator is arranged in an electromagnetic shielding box.
In the system, two 19-inch cabinets with the height of 1.6 meters and the depth of 600mm are adopted as test cabinets, each test cabinet comprises an industrial personal computer, an integrated display and a test instrument set, and the test instrument set consists of a program-controlled alternating-current power supply, an oscilloscope, a signal source, a peak power meter, a frequency spectrograph, a voltmeter and an ammeter. The industrial personal computer is connected with the tester group, the signal conditioning box, the tested module and the tested complete machine through the network switch and the serial port expansion card, so that the information input and output, and data control and processing functions of the whole system are realized; the integrated display is connected with the industrial personal computer to realize the display function.
The system takes an industrial personal computer as a core, and utilizes the industrial personal computer to complete the connection of a product to be tested, a signal conditioning box, a testing instrument set and a simulator through a network switch and a serial port expansion card, thereby realizing the automatic calibration of a testing link, providing excitation for the product to be tested, measuring an output signal of the product to be tested and realizing the automatic testing.
The serial port expansion card in the industrial personal computer provides a channel control signal of the signal conditioning box; providing a simulator, a tested piece, a voltmeter, an ammeter, an oscilloscope and a working state control signal; the programmable power supply provides a power supply state required by the normal work of the tested piece; the signal source provides radio frequency signals for the tested piece; the oscilloscope tests the related indexes of the low-frequency signal of the tested piece; testing the working current of the tested piece by an ammeter; the power meter tests the radiation power of the tested piece; the spectrometer analyzes the spectral characteristics of the measured object.
Preferably, the radio frequency switch matrix is a signal connection device between the tester group and the module to be tested and the whole machine to be tested, is composed of a plurality of controllable switches, is used for switching low-frequency and radio frequency signals, can automatically calibrate a radio frequency link, and provides a test platform for installing 6 types of modules (a power supply module, a receiver module, a transmitter module, a signal processing module 1, a signal processing module 2 and an interface management module) and two types of hosts (an inquiry responder 1 and an responder 2).
Preferably, in the design of a radio frequency link inside the signal conditioning box, a radio frequency cable with stable amplitude, stable phase and high performance is adopted, and particularly, when a radio frequency high-power omnidirectional channel is tested, special attention needs to be paid to signal attenuation and signal flow direction, otherwise, the risk of burning a test instrument and equipment exists. In order to realize the automatic calibration of the radio frequency link, a high-power switch, a high-power attenuator, a directional coupler, a high-reliability radio frequency coaxial switch, a mismatch load (for mismatch test), a power divider (for inter-channel phase difference test) and the like are adopted for construction. In the automatic calibration mode, the test software controls the signal source to generate a signal of a frequency band to be calibrated, controls the self-calibration loopback link of the switch matrix to finish the automatic connection of the signal source, the frequency spectrograph and the power meter with a channel to be calibrated, and automatically performs insertion loss calibration, recording and storing calibration data on each receiving and transmitting link.
Meanwhile, the system provides automatic calibration navigation, guides a client to carry out connection and link switching of a calibration link, automatically controls the test instrument and the switch matrix to execute insertion loss calibration operation, and records calibration data. The test precision is ensured, and the difficulty of calibration operation is simplified. In the transmission design of a low-frequency channel, a twisted pair shielding wire is selected and reasonably wired, so that crosstalk signals brought between channels are effectively reduced, and the correctness of a test result is ensured. The azimuth information simulation adopts a timer PWM of a singlechip to generate a required frequency pulse signal.
Preferably, in order to solve the problem of conductive transmission of system equipment with electromagnetic compatibility, all incoming and outgoing cables of the electromagnetic shielding box are respectively filtered, and the filtering adapter component structure adopts a filtering component integrated with an output connector. The filtering adapter assembly with the connector is directly installed at the top of the cabinet, so that secondary coupling is prevented, the input line is short as much as possible, and the filtering performance of the filtering assembly is fully exerted.
Preferably, the orientation simulator adopts timer pulse width modulation of a single chip microcomputer to generate a required frequency pulse signal, orientation information sent by the analog signal conditioning box has the capabilities of simulating an orientation and outputting north pulses.
Preferably, the power supply test matrix is connected with a voltmeter, an ammeter and 6 voltage detection channels of the tested module in the test cabinet, and performs switching of the test link according to the control instruction.
Preferably, the industrial personal computer is specifically connected with the signal conditioning box, the testing instrument set and the simulator as follows: the industrial personal computer is connected with a signal source, a frequency spectrograph and a peak power meter in the test instrument set through the LAN; the industrial personal computer is connected with an oscilloscope in the tester group through RS 232; the industrial personal computer is connected with a voltmeter and an ammeter in the tester group through RS 485; the industrial personal computer is connected with the azimuth signal simulator in the signal conditioning box through RS 232; the industrial personal computer is connected with a power supply test matrix and a radio frequency switch matrix in the test instrument group through the LAN; the industrial personal computer is connected with the simulator through the LAN.
As shown in fig. 2, the software in the automatic test system adopts a concept of layered design, and the software is divided into a physical interface layer, an instrument driver layer, a test software layer, and a user application layer.
Physical interface layer: the physical connection between the measurement and control computer and the instrument is provided, and the physical connection comprises an interface control card and a drive program of the interface control card.
Instrument drive layer: the interface is used for communication between a test program and related instruments such as a measuring instrument, an excitation device and a switch network, and can complete control of the test instrument and reading of test data.
And (3) testing a software layer: and the tested piece can be automatically or manually tested.
The user application layer: is the top layer of system software and provides a man-machine operation interface. And the user inputs the test conditions according to the test requirements to complete the test.
As shown in fig. 3, the steps of the automatic test program include:
step 1: starting test software, automatically entering an application layer, confirming the identity of a user by a system according to the user authority, automatically performing initialization work, prompting the user to change the IVI drive if the user does not pass the initialization, loading the IVI drive after the change is finished, and re-initializing the system;
step 2: a user tests or selects a system to automatically calibrate according to the requirement;
and step 3: if automatic calibration is selected, the system transfers an automatic calibration program, and enters a data initial state after the automatic calibration is finished;
and 4, step 4: if the test is selected, prompting the user to select a proper test item according to the tested object, and automatically loading a test program by the system;
and 5: the system calls a related test program file in combination with the test input condition;
step 6: the system executes the test program and records the test data;
and 7: and storing the measurement data, making a judgment and exiting the test.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed. Those skilled in the art to which the invention pertains will appreciate that insubstantial changes or modifications can be made without departing from the spirit of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides an automatic test system of identification module and complete machine based on IVI technique which characterized in that includes: the system comprises an industrial personal computer, a tester group, a signal conditioning box, a simulator, an electromagnetic shielding box, a tested module and a tested complete machine; the signal conditioning box comprises a radio frequency switch matrix, a direction signal simulator and a power supply testing matrix;
the industrial personal computer is respectively connected with the tester group, the signal conditioning box, the simulator and the tested complete machine, provides control signals and performs data control and processing on the whole system;
the tester group is in signal connection with the simulator and the tested complete machine through the radio frequency switch matrix, performs instrument testing on the tested module and the tested component, provides data to the industrial personal computer, and realizes signal communication between the tested module and the tested complete machine as well as the industrial personal computer;
the tested module is loaded on the simulator, and the simulator simulates the signal of the tested module; the simulator is connected with the complete machine to be tested and provides a signal source; the simulator is arranged in an electromagnetic shielding box.
2. The automatic test system of identification module and complete machine based on IVI technique of claim 1, wherein, the tester group is composed of program control AC power supply, oscilloscope, signal source, peak power meter, frequency spectrograph, voltmeter, ammeter;
the industrial personal computer is provided with a network switch and a serial port expansion card; the network switch is respectively connected with the signal source, the frequency spectrograph, the peak power meter and the program-controlled alternating current power supply; the signal source provides radio frequency signals for the simulator and the whole machine to be tested through the radio frequency switch matrix; the frequency spectrograph receives and analyzes the frequency spectrum characteristics of the simulator and the whole machine to be tested through the radio frequency switch matrix; the peak power meter tests the radiation power of the simulator and the tested complete machine through a radio frequency switch matrix; the program-controlled alternating current power supply provides power supply required by normal work for the simulator and the tested complete machine through the power supply test matrix; the power supply testing matrix transmits power supply state signals of the simulator and the tested complete machine to the voltmeter and the ammeter;
the serial port expansion card is respectively connected with the oscilloscope, the voltmeter and the ammeter; the oscilloscope tests low-frequency signals of the module to be tested and the complete machine to be tested through the radio frequency switch matrix; the voltmeter and the ammeter receive signals transmitted by the power supply testing matrix and provide the signals to the industrial personal computer; the serial port expansion card is connected with the direction signal simulator, and the direction signal simulator simulates direction information sent by the signal conditioning box and transmits the direction information to the simulator.
3. The IVI-technology-based identification module and complete machine automatic test system according to claim 1, further comprising an integrated display and a test cabinet, wherein the integrated display, the industrial personal computer and the test instrument are assembled in the test cabinet.
4. The IVI-technology-based identification module and complete machine automatic test system of claim 1, wherein the incoming and outgoing cables of the electromagnetic shielding box are processed by respective filtering, and the filtering adapter assembly in the electromagnetic shielding box is an output connector integrated filtering assembly.
5. The IVI-technology-based identification module and complete machine automatic test system of claim 4, wherein the filter adapter assembly is installed on the top of the cabinet.
6. The automatic test system of the identification module and the complete machine based on the IVI technology as claimed in claim 1, wherein the automatic test system further comprises a software part, the software part is processed in a layered manner and is divided into a physical interface layer, an instrument driver layer, a test software layer and a user application layer;
the physical interface layer provides physical connection between the industrial personal computer and the instrument and comprises an interface control card and a drive program of the interface control card;
the instrument driving layer is an interface for communication between a test program and related instruments such as a test instrument, excitation equipment, a switch network and the like, and can complete control of the test instrument and reading of test data;
the test software layer realizes automatic or manual test of the tested piece;
the user application layer is the top layer of the system software and provides a human-computer operation interface.
7. The IVI-technology-based identification module and complete machine automatic test system of claim 6, wherein the industrial personal computer is further loaded with an automatic test program, and the steps of the automatic test program comprise:
step 1: starting test software, automatically entering an application layer, confirming the identity of a user by a system according to the user authority, automatically performing initialization work, prompting the user to change an IVI drive in an industrial personal computer if the user does not pass the initialization, loading the IVI drive after the change is finished, and re-initializing the system;
step 2: a user tests or selects a system to automatically calibrate according to the requirement;
and step 3: if automatic calibration is selected, the system transfers an automatic calibration program, and enters a data initial state after the automatic calibration is finished;
and 4, step 4: if the test is selected, prompting a user to select a proper test item according to the tested module and/or the tested complete machine, and automatically loading a test program by the system;
and 5: the system calls a related test program file in combination with the test input condition;
step 6: the system executes the test program and records the test data;
and 7: and storing the measurement data, making a judgment and exiting the test.
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| CN112751968A (en) * | 2020-12-30 | 2021-05-04 | 中电科仪器仪表(安徽)有限公司 | 5G terminal testing device and testing method based on cloud testing platform |
| CN116388892A (en) * | 2023-05-22 | 2023-07-04 | 中国电子科技集团公司第十研究所 | Automatic test system of comprehensive communication equipment |
| CN116436538A (en) * | 2023-06-12 | 2023-07-14 | 西安弘捷电子技术有限公司 | Automatic calibration method and system for multi-channel TR (transmitter-receiver) component test |
| CN116436538B (en) * | 2023-06-12 | 2023-11-21 | 西安弘捷电子技术有限公司 | Automatic calibration method and system for multi-channel TR (transmitter-receiver) component test |
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Application publication date: 20191224 |