CN110798383A - Ethernet test system and method - Google Patents
Ethernet test system and method Download PDFInfo
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- CN110798383A CN110798383A CN201911065618.5A CN201911065618A CN110798383A CN 110798383 A CN110798383 A CN 110798383A CN 201911065618 A CN201911065618 A CN 201911065618A CN 110798383 A CN110798383 A CN 110798383A
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- H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
- H04L1/244—Testing correct operation by comparing a transmitted test signal with a locally generated replica test sequence generators
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Abstract
The invention provides an Ethernet test system and a method, wherein the Ethernet test system comprises: the system comprises an industrial personal computer, a vector network analyzer, an oscilloscope and a test tool; the industrial personal computer is in communication connection with the vector network analyzer, the oscilloscope and the test tool; the tested equipment is connected to the gigabit Ethernet test system through the test tool for testing; the test tool comprises at least two signal transmission lines, and the switching of the signal transmission lines in the test tool is controlled according to the control instruction of the industrial personal computer. The invention provides the test bed for the Ethernet consistency test, reduces the error of manual intervention in the test and reduces the workload of testers. The established test platform can also integrate full-automatic test on the hundred-mega Ethernet equipment at the same time, and is a method for testing the network consistency of the motor train unit and the equipment for simultaneously upgrading the method.
Description
Technical Field
The invention relates to a test technology, in particular to an Ethernet test system and method.
Background
The existing train network consistency testing technology is a method for carrying out consistency testing on hundred-mega Ethernet transmission equipment of subsystems such as a standard motor car, and related methods and equipment for carrying out consistency testing on the hundred-mega Ethernet transmission equipment do not exist.
With the development of the ethernet train control technology of the high-speed motor train unit, the consistency test of the network equipment of the hundred-million vehicles cannot meet the increasing network requirements and equipment verification requirements.
Disclosure of Invention
In order to improve the efficiency of ethernet testing, an embodiment of the present invention provides an ethernet testing system, where the train ethernet testing system includes: the system comprises an industrial personal computer, a vector network analyzer, an oscilloscope and a test tool; wherein the content of the first and second substances,
the vector network analyzer and the oscilloscope are both connected to the test tool, and the industrial personal computer is in communication connection with the vector network analyzer, the oscilloscope and the test tool; the tested equipment is connected to the gigabit Ethernet test system through the test tool for testing;
the test tool comprises at least two signal transmission lines, and the switching of the signal transmission lines in the test tool is controlled according to the control instruction of the industrial personal computer.
In the embodiment of the invention, the test tool comprises: the device comprises a vector network analyzer signal selection module, an oscilloscope signal selection module and a test case selection module;
the vector network analyzer signal selection module comprises: at least two vector network analyzer signal selection branches;
the oscilloscope signal selection module comprises: at least one oscilloscope signal selection branch;
the test case selection module comprises: selecting branches from multiple test case items;
and selecting a branch from the vector network analyzer signal selection module, the oscilloscope signal selection module and the test case selection module according to the control instruction of the industrial personal computer to form the signal transmission line, and controlling the switching of the signal transmission line in the test tool.
In the embodiment of the invention, the vector network analyzer signal selection module, the oscilloscope signal selection module and the test case selection module are all connected to a selection switch, and the selection switch is controlled according to the control instruction of the industrial personal computer to control the transmission line of the tested equipment connected to the test tool so as to control the switching of the signal transmission line in the test tool.
In the embodiment of the present invention, the signal selection branch of the vector network analyzer includes: a first change-over switch, a second change-over switch and a third change-over switch;
the vector network analyzer is connected to the first change-over switch of each branch circuit through a vector network analyzer interface of the test tool, two ends of the first change-over switch are respectively connected with the second change-over switch and the third change-over switch, two ends of the second change-over switch are respectively connected with an open circuit and a short circuit, one end of the third change-over switch is connected with a matching working condition, and the other end of the third change-over switch is connected to the selector switch.
In the embodiment of the invention, the oscilloscope signal selection branch is a double-pole double-throw switch, and one end of the double-pole double-throw switch is connected with one end of an oscilloscope and is connected with the selection switch.
In the embodiment of the present invention, the oscilloscope signal selection module further includes: and the interference source is connected with the oscilloscope signal selection branch in parallel and is connected to the selection switch through a switch.
In the embodiment of the present invention, the test case selection module further includes: and the control switch is connected with each test case item point selection branch in parallel so as to control whether the test case selection module is connected to the test case item point selection branch or not according to a control instruction of the industrial personal computer.
In the embodiment of the invention, the control switch is a double-pole single-throw switch;
one end of the double-pole single-throw switch of the test case selection module and one end of the test case item selection branch are connected to the selection switch, and the other end of the double-pole single-throw switch of the test case selection module and the other end of the test case item selection branch are connected to the tested equipment.
In the embodiment of the present invention, the system further includes: and the load is connected to the test tool through a switch to be used as the accompanying equipment of the tested equipment.
In the embodiment of the present invention, the test case item point selection branch includes: a peak voltage test case item branch, a rise/fall time test case item branch, a duty ratio distortion test case item branch, a transmission jitter test case item branch, a template test case item branch, a transmitter return loss test case item branch, and a receiver return loss test case item branch for carrying out a hundred-mega Ethernet test;
the circuit is used for carrying out an output voltage peak value test case item branch, a maximum output drop voltage test case item branch, a differential output template test case item branch, a transmitting terminal distortion-clock-free test case item branch and a transmitting terminal distortion-clock test case item branch under the interference and interference-free conditions of the gigabit Ethernet test;
the test system is used for carrying out jitter master mode test case item point branch and jitter slave mode test case item point branch under the condition of no clock for gigabit Ethernet test;
the system is used for carrying out gigabit Ethernet test, and comprises a jitter master mode-a filtered test case item branch, a jitter master mode-a non-filtered test case item branch and a jitter slave mode-a non-filtered test case item branch under the condition of clock;
the system comprises an MDI return loss test case item point branch circuit and a common mode output voltage test case item point branch circuit which are used for carrying out gigabit Ethernet test.
Meanwhile, the invention also provides an Ethernet test method, which utilizes the Ethernet test system to carry out Ethernet test.
The Ethernet test system of the invention provides a test bed for testing the Ethernet consistency, reduces the error of manual intervention in the test and reduces the workload of testers. The established test platform can also integrate full-automatic test on the hundred-mega Ethernet equipment at the same time, and is a method for testing the network consistency of the motor train unit and the equipment for simultaneously upgrading the method.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 an Ethernet test system according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of the upper computer in the embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a connection between a test fixture and other devices of a test system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a connection between a test fixture and other devices of a test system according to an embodiment of the present invention;
FIG. 5 is a block diagram of a testing apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a front interface of a test fixture according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of a back interface of a test fixture according to an embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of a test fixture in an embodiment of the present disclosure;
fig. 9 is a flowchart of the ethernet test disclosed in this embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses an Ethernet test system, the train Ethernet test system includes: the system comprises an industrial personal computer, a vector network analyzer, an oscilloscope and a test tool; wherein the content of the first and second substances,
the industrial personal computer is in communication connection with the vector network analyzer, the oscilloscope and the test tool; the tested equipment is connected to the gigabit Ethernet test system through the test tool for testing;
the test tool comprises at least two signal transmission lines, and the switching of the signal transmission lines in the test tool is controlled according to a control instruction of the industrial personal computer.
The invention provides a set of feasible system for carrying out physical layer test on the Ethernet equipment so as to verify whether the Ethernet equipment meets the standard requirement. The Ethernet test platform established on the basis can realize the test of the gigabit Ethernet equipment, can also integrate the full-automatic test of the hundred-gigabit Ethernet equipment, and is a method for testing the network consistency of the motor train unit and the simultaneous upgrade of the equipment.
As shown in fig. 1, which is a block diagram of an ethernet testing system disclosed in the embodiment of the present invention, a testing system in this embodiment mainly includes two parts, namely testing software and testing equipment, for testing an ethernet, where the testing software mainly includes testing management software in an upper computer, and the measurement and control system includes: oscilloscope, vector network analyzer, industrial computer, switch, test fixture.
As shown in fig. 2, the software executed in the upper computer includes: test management software, test execution software and test equipment software. The test management software in the upper computer is mainly used for man-machine interaction, and can realize functions of test case management, test parameter information configuration, test execution control, test report generation and the like. The software of the test equipment in the upper computer realizes the remote control of the test equipment related to the test process, such as an oscilloscope, a vector network analyzer, a test tool and the like in the measurement and control system, and controls the software of the consistency test of the physical layer in the oscilloscope. The test execution software in the upper computer can realize automatic calling of the test auxiliary software.
In the embodiment, the oscilloscope is mainly used for the consistency waveform test of the Ethernet 100M and 1000M physical layers, the consistency test software can be integrated in the oscilloscope in the embodiment of the invention, and all physical layer test cases run on the software.
The vector network analyzer is mainly used for return loss testing and is controlled and realized by consistency testing software in an oscilloscope. The industrial personal computer mainly runs upper computer test software, controls each test device through Ethernet, and controls the test tool to realize automatic switching of the test process.
In the embodiment of the invention, the test tool comprises: the device comprises a vector network analyzer signal selection module, an oscilloscope signal selection module and a test case selection module;
the vector network analyzer signal selection module comprises: at least two vector network analyzer signal selection branches;
the oscilloscope signal selection module comprises: at least one oscilloscope signal selection branch;
the test case selection module comprises: selecting branches from multiple test case items;
and selecting a branch from the vector network analyzer signal selection module, the oscilloscope signal selection module and the test case selection module according to a control instruction of the industrial personal computer to form a signal transmission line, and controlling the switching of the signal transmission line in the test tool.
Fig. 3 is a schematic connection diagram of the test fixture and other devices of the test system disclosed in the embodiment of the present invention. According to the testing requirements of users, the upper computer generates corresponding control signals to control the switches in the testing tool, so that signal branches are selected, and testing of the Ethernet equipment is achieved. In the schematic diagram shown in fig. 3, the vector network analyzer signal selection module includes: the vector network analyzer is connected to the vector network analyzer signal selection branches VNA-CHA, VNA-CHB, VNA-CHC and VNA-CHD through four NVA interfaces of the test fixture.
In the embodiment of the invention, the signal selection branch of the vector network analyzer comprises: a first change-over switch, a second change-over switch and a third change-over switch; the vector network analyzer is connected to the first change-over switch of each branch circuit through a vector network analyzer interface of the test tool, two ends of the first change-over switch are respectively connected with the second change-over switch and the third change-over switch, two ends of the second change-over switch are respectively connected with an open circuit and a short circuit, one end of the third change-over switch is connected with a matching working condition, and the other end of the third change-over switch is connected to the selector switch. In the embodiment shown in fig. 3, the network analyzer signal selection branch VNA-CHA is composed of a double-pole double-throw switch DPDT1, a double-pole double-throw switch DPDT2 and a double-pole double-throw switch DPDT3, so as to implement the aforementioned vector network analyzer signal selection branch composed of a first switch, a second switch and a third switch.
In the embodiment of the invention, the signal selection module of the vector network analyzer is connected to the signal selection module of the oscilloscope and the test case selection module through the selection switch. In the embodiment shown in fig. 3, the selection switch 301 is a double-pole double-throw switch, and one end of the selection switch 301 is connected to the vector network analyzer signal selection module, and the other end is connected to the oscilloscope signal selection module.
In the embodiment of the invention, the oscilloscope signal selection branch is a double-pole double-throw switch DPDT5, and one end of the double-pole double-throw switch DPDT5 is connected with one end of the oscilloscope and is connected with the selection switch.
In the embodiment of the present invention, the oscilloscope signal selection module further includes: and the interference source is connected with the selection switch through a switch, and in the embodiment, the interference source is connected with the selection switch through a double-pole double-throw switch DPDT 5. The interference source may be implemented by connecting to an interface of the oscilloscope signal generator, or a separate signal generator may be used as the interference source, as shown in fig. 4.
In the embodiment of the present invention, as shown in fig. 3 or fig. 4, the test case selection module further includes: the double-pole single-throw switch is connected with each test case item point selection branch in parallel so as to determine whether to access the test case item point selection branch according to a control instruction of the industrial personal computer;
one end of the double-pole single-throw switch of the test case selection module and one end of the test case item selection branch are connected to the selection switch, and the other end of the double-pole single-throw switch of the test case selection module and the other end of the test case item selection branch are connected to the tested equipment. The test case item point selection branch in the test case selection module is determined according to the test parameters or the test cases selected by the user in the upper computer.
The following table 1 shows the test contents and standards implemented in the examples of the present invention.
TABLE 1
As can be seen from the test cases shown in table 1, the branch for selecting the test case entry point in this embodiment includes:
the test system comprises a peak voltage test case item point branch, a rise/fall time test case item point branch, a duty ratio distortion test case item point branch, a transmission jitter test case item point branch, a template test case item point branch, a transmitter return loss test case item point branch and a receiver return loss test case item point branch which are used for carrying out a hundred-mega Ethernet test.
The system comprises an output voltage peak value test case item point branch, a maximum output drop voltage test case item point branch, a differential output template test case item point branch, a transmitting terminal distortion-clock-free test case item point branch and a transmitting terminal distortion-clock test case item point branch which are used for carrying out gigabit Ethernet test and under the interference condition; under the condition of no interference, an output voltage peak value test case item branch, a maximum output drop voltage test case item branch, a differential output template test case item branch, a transmitting terminal distortion-clock-free test case item branch and a transmitting terminal distortion-clock test case item branch;
the test system is used for carrying out gigabit Ethernet test and jitter master mode test case item point branch circuits and jitter slave mode test case item point branch circuits under the clock-free condition;
the device is used for carrying out gigabit Ethernet test and has a jitter master mode under a clock condition, a filtered test case item branch, a jitter master mode, a non-filtered test case item branch and a jitter slave mode, a non-filtered test case item branch;
the system comprises an MDI return loss test case item point branch circuit and a common mode output voltage test case item point branch circuit which are used for carrying out gigabit Ethernet test.
In the embodiment of the present invention, the system further includes: and the load is connected to the test tool through a switch to be used as the accompanying equipment of the tested equipment.
In this embodiment, the load is connected to the test fixture through a double pole single throw switch DPST.
In addition, it should be noted that, in the schematic diagrams shown in fig. 3 or fig. 4, the vector network analyzer is connected to the vector network analyzer signal selection branches VNA-CHA, VNA-CHB, VNA-CHC, and VNA-CH through the four NVA interfaces of the test fixture, and in the embodiment shown in fig. 3, the vector network analyzer signal selection module includes four vector network analyzer signal selection branches VNA-CHA, VNA-CHB, VNA-CHC, and VNA-CHD, but it is obvious to those skilled in the art that the number of the vector network analyzer signal selection branches and the vector network analyzer signal selection branches is not limited thereto.
Similarly, the number of oscilloscope signal selection branches in the oscilloscope signal selection module is not limited to the number in the embodiments shown in fig. 3 and 4.
Fig. 5 is a schematic diagram of a connection between a test fixture having two vector network analyzer signal selection branches and an oscilloscope signal selection branch and other devices according to an embodiment of the present invention. The two instruments corresponding to the two VNAs in fig. 5 are two different channel ports of the same vector network analyzer, and for those skilled in the art, the two vector network analyzers may also be connected to two different channel ports of the test fixture to perform the ethernet consistency test.
Fig. 6 is a schematic diagram of a front interface of the test fixture in this embodiment, in fig. 6, a front panel interface VNA1 is connected to a first channel of the vector network analyzer, a DSO1 is connected to a probe of the oscilloscope and connected to a channel of the oscilloscope, an IUT port is connected to the device to be tested, a LP port is connected to an induced packet excitation signal source of the industrial personal computer, and a VNA2 is connected to a second channel of the vector network analyzer.
Fig. 7 is a schematic diagram of a back interface of a test fixture according to an embodiment of the present invention, in which the test fixture further includes: a power interface, a LAN interface; in fig. 7, the power interface of the test fixture is a 100-plus-240V interface, and is connected to a power plug, the LAN interface of the test fixture is connected to a router or an industrial personal computer controlling a fixture (test fixture), and RS232 is a fixture debugging interface.
In the embodiment of fig. 5, the two instruments corresponding to the VNAs are two different channel ports of the same vector network analyzer, and for those skilled in the art, the two vector network analyzers may also be connected to two different channel ports of the test fixture to perform the ethernet consistency test.
In addition to the integration of the complete gigabit ethernet test, the present embodiment also integrates a complete solution of the hundred megabyte automation experiment.
For example, in the test of the hundred mega ethernet, if a test item point of "transmitter return loss" needs to be measured, as shown in fig. 5, the control circuit connects the channel VNA1 to the DPDT1 to the left through a calibration open circuit of 3 to DPDT2 by 5, connects the channel VNA to the DPDT1 to the right through a calibration short circuit of 6, toggles to the right through the DPDT1, connects the DPDT3 to the right through a calibration matching condition of 7 by 4, then controls the DPDT3 to toggle to the right through 8, connects the DPDT8 to the right, toggles to the connection 10, and connects the device under test. Meanwhile, in the whole test process, for a right circuit, a signal excitation source is connected with a network cable, is switched to the right through 22 and DPDT10, is connected with DPDT9 through 19, and enters the tested device through 20 for excitation.
When switching to the next item point, the "receiver return loss" test item point, it is only necessary to connect the DPDT8 to the left side and connect to the corresponding switch line of the corresponding right-side circuit.
Compared with a single-channel testing device in the prior art, the train Ethernet testing device provided by the embodiment shown in FIG. 5 uses a double-channel testing tool to test the return loss of the Ethernet, and the like, fully utilizes double channels of instruments and meters, improves the original single-channel interface, removes a one-to-two channel change-over switch in a single-channel wire changing device, reduces the interference of an artificial additional switch, directly connects a double channel into an oscilloscope, and improves the testing precision of a high-frequency testing item.
The test fixture of the train Ethernet test device of the embodiment comprises: two vector network analyzer interfaces, a tested equipment interface;
the vector network analyzer is connected to the first channel and the second channel through two vector network analyzer interfaces, and the first channel and the second channel are both connected to the tested equipment interface.
The invention needs to carry out relevant circuit design adjustment, such as wiring scheme, impedance matching and the like, on the original test tool for automatically testing and changing the wire while the one-way and two-way switch of the automatic wire changing device with the single SMA interface is in existence.
As shown in fig. 8, the first channel of the test fixture includes: a first changeover switch 201, a second changeover switch 202, a third changeover switch 203, a seventh changeover switch 207, and an eighth changeover switch 208;
the vector network analyzer 101 is connected to the first channel through a first switch 201, the second switch 202 and the third switch 203 are both connected to the first switch 201, the third switch 203 is connected to a seventh switch 207 through an eighth switch 208, the oscilloscope 102 is connected between the eighth switch 208 and the seventh switch 207, and the device under test is connected to the first channel through the eighth switch 208.
As shown in fig. 8, the second channel of the test fixture includes: a fourth changeover switch 204, a fifth changeover switch 205, a sixth changeover switch 206, a ninth changeover switch 209, and a tenth changeover switch 210;
the vector network analyzer 101 is connected to the second channel through a fourth switch 204, the fifth switch 205 and the sixth switch 206 are both connected to the fourth switch 204, the fifth switch 205 is connected to a tenth switch 210 through a ninth switch 209, the signal source 103 is connected to the tenth switch 210, and the device under test is connected to the second channel through the ninth switch 209.
In one embodiment of the invention, a multi-channel oscilloscope is adopted in the test bed for realizing the train Ethernet test device, and the multi-line switching process of the common semi-automatic test is directly skipped aiming at the echo loss test item without manually calibrating the working conditions of open circuit, short circuit, open circuit and the like. The main improvement mode of this embodiment achieves the purpose of reducing manual wire replacement by rewiring the test fixture again, and controlling, improving and calling the relevant API Interface (Application Programming Interface) of the oscilloscope in cooperation with the oscilloscope and the upper computer, thereby completing the consistency test of the device. Meanwhile, because the interference of manual operation (such as circuit bending, electromagnetic interference, manual misoperation and the like during manual wire replacement) is reduced, the uniformity and the accuracy of the improved test result are better ensured compared with the manual operation.
Compared with the single-channel SMA wire changing device in the prior art, the single-channel SMA wire changing device in the embodiment uses one set of double-channel testing device to realize return loss testing, makes full use of double channels of instruments and meters, improves the original single-channel interface, removes one-branch and two-way change-over switches in the single-channel wire changing device, reduces the interference of artificial additional switches, directly connects into an oscilloscope through double channels, and improves the testing precision of high-frequency testing item points.
According to the description of the above embodiments, the test platform disclosed by the present invention can implement a 100M full-automatic test and a 1000M semi-automatic test of the ethernet, and simultaneously support switching to a manual operation test.
Meanwhile, the invention also provides an Ethernet test method, which utilizes the Ethernet test system in the embodiment to test the Ethernet equipment.
Fig. 9 is a flowchart of the ethernet test disclosed in this embodiment.
Taking the "voltage amplitude" at the top of the gigabit ethernet consistency test as an example,
when the test begins, the tester opens the industrial personal computer, connects the equipment under test IUT to the corresponding interface of the test bench, connects the test instrument. And operating upper computer integrated software on the industrial personal computer, and inputting manufacturer information, tested equipment information and the like corresponding to the test equipment in a software menu. And then checking the voltage amplitude of the test item point, and determining that the post test is started. In the test process, the program in the clamp board card and the program in the upper computer software are matched to operate the corresponding high-speed change-over switch matrix to switch the circuit, when the circuit is switched to a specific item, the test software is paused, the circuit is manually switched, and the test is continued. After the test is finished, the software automatically reads the test data and the pictures in the background instrument and inserts the test data and the pictures into the prepared test report template to form a complete test report.
The embodiment of the invention mainly provides a manual and automatic testing system and method for Ethernet consistency testing, wherein the automatic testing refers to the manual testing function and flow. The manual intervention of the entire giga-test from start to finish does not exceed 4 times, with optional test points listed below. The test platform extended and developed by the method can install integrated test software on an upper computer, operate corresponding instruments and meters, test corresponding items of connected tested equipment, record test results, call a few protocol layer test auxiliary functions and support automatic generation of test reports.
In this embodiment, a specific test flow of the ethernet automatic test apparatus is substantially as follows:
1. connecting the tested device, the test instrument and the upper computer;
2. establishing and determining the type of the tested equipment, the type of an interface and a test item point, and recording related test equipment information into upper computer centralized test software;
3. and starting the centralized control software to call the test case, driving the instrument to automatically test the connected tested equipment at corresponding item points, wherein hundreds of megabytes have no manual intervention, and gigabytes are not more than 4 times.
4. The centralized test software automatically calls other auxiliary software to generate an excitation signal required by the test, and the package is captured to retain the bottom data.
5. And after the test is finished, the upper computer automatically calls the stored template information, brings in the test result and automatically generates a test report.
Compared with the prior art, the invention has the following beneficial effects:
a test flow of gigabit-capable automatic Ethernet consistency test is developed;
the blank of building a test bed for the consistency test process of the gigabit Ethernet is filled, the automatic test and the manual test of the consistency test of the gigabit Ethernet are integrated, and a hundred-million automatic test device is also integrated;
the method has good reference function for the testing method of the manual and automatic testing of the hundred-million and gigabit Ethernet consistency testing;
the design of the Ethernet equipment is of reference significance;
the error of manual intervention in the test is reduced, and the workload of a tester is reduced.
The invention provides a practical and feasible physical layer test scheme aiming at the gigabit Ethernet equipment so as to verify whether the gigabit Ethernet equipment meets the standard requirement. The gigabit test platform established on the basis can also integrate full-automatic test on the hundred-million Ethernet equipment, and is a method for testing the network consistency of the motor train unit and the simultaneous upgrade of the equipment.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments that fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart 1 flow or flows and/or block 1 block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows of FIG. 1 and/or block diagram block or blocks of FIG. 1.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart 1 flow or flows and/or block 1 block or blocks.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (11)
1. An ethernet test system, comprising: the system comprises an industrial personal computer, a vector network analyzer, an oscilloscope and a test tool; wherein the content of the first and second substances,
the vector network analyzer and the oscilloscope are both connected to the test tool, and the industrial personal computer is in communication connection with the vector network analyzer, the oscilloscope and the test tool; the tested equipment is connected to the gigabit Ethernet test system through the test tool for testing;
the test tool comprises at least two signal transmission lines, and the switching of the signal transmission lines in the test tool is controlled according to the control instruction of the industrial personal computer.
2. The ethernet test system of claim 1, wherein said test fixture comprises: the device comprises a vector network analyzer signal selection module, an oscilloscope signal selection module and a test case selection module;
the vector network analyzer signal selection module comprises: at least two vector network analyzer signal selection branches;
the oscilloscope signal selection module comprises: at least one oscilloscope signal selection branch;
the test case selection module comprises: selecting branches from multiple test case items;
and selecting a branch from the vector network analyzer signal selection module, the oscilloscope signal selection module and the test case selection module according to the control instruction of the industrial personal computer to form the signal transmission line, and controlling the switching of the signal transmission line in the test tool.
3. The Ethernet test system of claim 2, wherein the vector network analyzer signal selection module, the oscilloscope signal selection module and the test case selection module are all connected to a selection switch, and the selection switch is controlled according to a control instruction of the industrial personal computer to control a transmission line of a tested device connected to the test fixture so as to control switching of the signal transmission line in the test fixture.
4. The ethernet test system of claim 3 wherein said vector network analyzer signal selection branch comprises: a first change-over switch, a second change-over switch and a third change-over switch;
the vector network analyzer is connected to the first change-over switch of each branch circuit through a vector network analyzer interface of the test tool, two ends of the first change-over switch are respectively connected with the second change-over switch and the third change-over switch, two ends of the second change-over switch are respectively connected with an open circuit and a short circuit, one end of the third change-over switch is connected with a matching working condition, and the other end of the third change-over switch is connected to the selector switch.
5. The Ethernet test system of claim 3, wherein the oscilloscope signal selection branch is a double-pole double-throw switch, and one end of the double-pole double-throw switch is connected to one end of the oscilloscope and is connected to the selection switch.
6. The ethernet test system of claim 3, wherein said oscilloscope signal selection module further comprises: and the interference source is connected with the oscilloscope signal selection branch in parallel and is connected to the selection switch through a switch.
7. The ethernet test system of claim 3, wherein said test case selection module further comprises: and the control switch is connected with each test case item point selection branch in parallel so as to control whether the test case selection module is connected to the test case item point selection branch or not according to a control instruction of the industrial personal computer.
8. The ethernet test system of claim 7, wherein said control switch is a double pole single throw switch;
one end of the double-pole single-throw switch of the test case selection module and one end of the test case item selection branch are connected to the selection switch, and the other end of the double-pole single-throw switch of the test case selection module and the other end of the test case item selection branch are connected to the tested equipment.
9. The ethernet test system of claim 1, wherein said system further comprises: and the load is connected to the test tool through a switch to be used as an accompanying device of the tested device.
10. The ethernet test system of claim 7 wherein said test case entry point selection leg comprises: a peak voltage test case item branch, a rise/fall time test case item branch, a duty ratio distortion test case item branch, a transmission jitter test case item branch, a template test case item branch, a transmitter return loss test case item branch, and a receiver return loss test case item branch for carrying out a hundred-mega Ethernet test;
the circuit is used for carrying out an output voltage peak value test case item branch, a maximum output drop voltage test case item branch, a differential output template test case item branch, a transmitting terminal distortion-clock-free test case item branch and a transmitting terminal distortion-clock test case item branch under the interference and interference-free conditions of the gigabit Ethernet test;
the test system is used for carrying out jitter master mode test case item point branch and jitter slave mode test case item point branch under the condition of no clock for gigabit Ethernet test;
the system is used for carrying out gigabit Ethernet test, and comprises a jitter master mode-a filtered test case item branch, a jitter master mode-a non-filtered test case item branch and a jitter slave mode-a non-filtered test case item branch under the condition of clock;
the system comprises an MDI return loss test case item point branch circuit and a common mode output voltage test case item point branch circuit which are used for carrying out gigabit Ethernet test.
11. An ethernet testing method, characterized in that said method uses the ethernet testing system according to any of claims 1-10 for ethernet testing.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638706A (en) * | 2020-06-05 | 2020-09-08 | 中国第一汽车股份有限公司 | System and method for testing gateway controller |
| CN112134759A (en) * | 2020-09-22 | 2020-12-25 | 中车唐山机车车辆有限公司 | Train Ethernet test system |
| CN112968810A (en) * | 2021-02-08 | 2021-06-15 | 一汽解放汽车有限公司 | Vehicle-mounted Ethernet physical layer testing device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1713599A (en) * | 2004-06-22 | 2005-12-28 | 中兴通讯股份有限公司 | Multi-mouth switching device and testing method for network exchanger |
| CN103036740A (en) * | 2012-12-17 | 2013-04-10 | 上海斐讯数据通信技术有限公司 | Ethernet passive optical network (EPON) system testing method for network terminal gigabit Ethernet interface signal |
| CN103248527A (en) * | 2012-02-10 | 2013-08-14 | 迈普通信技术股份有限公司 | Testing tool device, testing system and testing method for Ethernet consistency |
| CN103457804A (en) * | 2013-09-11 | 2013-12-18 | 青岛四方车辆研究所有限公司 | Consistency testing platform of train network communication products |
| US9203730B1 (en) * | 2012-11-19 | 2015-12-01 | Sifos Technologies, Inc. | Method and apparatus for testing network interfaces |
| CN107817368A (en) * | 2017-09-27 | 2018-03-20 | 南京捷希科技有限公司 | A kind of measurement apparatus and measuring method of multichannel S parameter |
-
2019
- 2019-11-04 CN CN201911065618.5A patent/CN110798383B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1713599A (en) * | 2004-06-22 | 2005-12-28 | 中兴通讯股份有限公司 | Multi-mouth switching device and testing method for network exchanger |
| CN103248527A (en) * | 2012-02-10 | 2013-08-14 | 迈普通信技术股份有限公司 | Testing tool device, testing system and testing method for Ethernet consistency |
| US9203730B1 (en) * | 2012-11-19 | 2015-12-01 | Sifos Technologies, Inc. | Method and apparatus for testing network interfaces |
| CN103036740A (en) * | 2012-12-17 | 2013-04-10 | 上海斐讯数据通信技术有限公司 | Ethernet passive optical network (EPON) system testing method for network terminal gigabit Ethernet interface signal |
| CN103457804A (en) * | 2013-09-11 | 2013-12-18 | 青岛四方车辆研究所有限公司 | Consistency testing platform of train network communication products |
| CN107817368A (en) * | 2017-09-27 | 2018-03-20 | 南京捷希科技有限公司 | A kind of measurement apparatus and measuring method of multichannel S parameter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638706A (en) * | 2020-06-05 | 2020-09-08 | 中国第一汽车股份有限公司 | System and method for testing gateway controller |
| CN112134759A (en) * | 2020-09-22 | 2020-12-25 | 中车唐山机车车辆有限公司 | Train Ethernet test system |
| CN112968810A (en) * | 2021-02-08 | 2021-06-15 | 一汽解放汽车有限公司 | Vehicle-mounted Ethernet physical layer testing device and method |
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| Publication number | Publication date |
|---|---|
| CN110798383B (en) | 2022-03-29 |
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