CN100490359C - Testing apparatus and method for XDSL - Google Patents
Testing apparatus and method for XDSL Download PDFInfo
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- CN100490359C CN100490359C CNB031592589A CN03159258A CN100490359C CN 100490359 C CN100490359 C CN 100490359C CN B031592589 A CNB031592589 A CN B031592589A CN 03159258 A CN03159258 A CN 03159258A CN 100490359 C CN100490359 C CN 100490359C
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Abstract
The present invention discloses a testing device for xDSL, and said device includes multichannel line simulator, single-channel line simulator, single-channel and multichannel selection array, control panel and control computer, in which the single-channel and multi-channel selection array can be used for implementing the selective connection of multi-channel line simulator or single-channel line simulator with tested xDSL port under the control of control panel connected with computer, the control panel can be used for receiving control of computer and implementing selection of connection mode state of single-channel and multichannel selection array, the computer can be used for controlling control panel, collecting test result data from tested xDSL port and making analysis operation of the above-mentioned data. Said invention also provides its testing method.
Description
Technical field
The present invention relates to broadband access technology, refer to testing apparatus and the method for a kind of xDSL of being used for especially.
Background technology
XDSL (the full name of various digital user line technologies, comprise HDSL, ADSL, VDSL, SDSL etc.) network access system is a kind of broadband user's connecting system, and is big based on the port demand of xDSL technology, use amount is wide, therefore the transmission performance of xDSL port is the main factor of reflection xDSL connecting system quality, quality, and for example, the quality of xDSL port consistency performance has just directly embodied the consistency and the stability of this systematic function.
Because xDSL connecting system transmission performance and consistency all can be affected in product design, production process, therefore how to carry out the test that influences each other between the uniformity test, xDSL port of the performance test of xDSL port transmission, transmission performance fast, and how effectively and rapidly analytical test result, test data, assessment xDSL port transmission performance and consistency seem extremely important.
XDSL port transmission performance and xDSL port transmission uniformity test are realized by the training data of xDSL port, as port training speed, training time, noise margin, transmitted power, Line Attenuation etc.At present general testing apparatus as shown in Figure 1, 2, the tested equipment among Fig. 1,2 is 32 ports.Among Fig. 1, the xDSL plate is tested local side access device, supports multichannel xDSL to insert; Frame of broken lines is testing apparatus, and multi-path line emulating instrument is wherein realized the simulation of multichannel different length circuit; RTU (distance terminal unit) is the xDSL terminal equipment.Simulate different line lengths by the circuit emulation instrument is set, test each xDSL port training data, assessment xDSL port transmission performance index, and by contrasting the training data of these xDSL ports, the consistency of assessment xDSL port transmission performance.
Among Fig. 2, the xDSL plate is tested local side access device, supports multichannel xDSL to insert; Frame of broken lines is testing apparatus, and 1 route road emulating instrument is wherein realized the simulation of 1 road different length circuit; RTU is the xDSL terminal equipment.By being set, the circuit emulation instrument simulates different line lengths, select a switch to select test line by multichannel, test each xDSL port training data, assessment xDSL port transmission performance index, and by contrasting the training data of these xDSL ports, the consistency of assessment xDSL port transmission performance.
The common drawback of above-mentioned two kinds of testing apparatuss is:
1, must carry out manual analysis, statistics to test result, data volume is big, testing efficiency is low;
2, for device shown in Figure 1, though can test the transmission performance of xDSL port fast simultaneously, but for each xDSL port of local side apparatus, all be the different RTU that connect, the otherness of RTU like this, xDSL port uniformity test result's deviation will be caused, xDSL port consistency performance can't be accurately assessed;
3, there are differences between the different simulated line parameters of multi-path line emulating instrument, also influence the assessment of xDSL port transmission consistency of performance;
4, for device shown in Figure 2, although can accurately test xDSL port transmission performance and uniformity test, efficient is lower, and can't test the characteristic that influences each other between the xDSL port;
5, need the manual different xDSL port tests of switching, testing efficiency is low, and the manual work amount is big.
Summary of the invention
The invention provides testing apparatus and the method for a kind of xDSL of being used for, low and test incomplete shortcoming to solve existing measuring technology automaticity.
For addressing the above problem, the invention provides following technical scheme:
A kind of testing apparatus that is used for xDSL comprises multi-path line emulating instrument and connected distance terminal unit, and single channel circuit emulation instrument and connected distance terminal unit also comprise: single, multichannel is selected array, control board, and computer, wherein:
Single, multichannel selects array to be connected respectively with control board with multi-path line emulating instrument, single channel circuit emulation instrument, be used under the control of the control board that is connected with computer, finish multi-path line emulating instrument or single channel circuit emulation instrument and be connected with the selection of tested xDSL port;
Control board is used to accept the control of computer, realizes single, multichannel selection array connected mode state selection;
Computer is used for control board is controlled and from tested xDSL port processing test result data, and above-mentioned data is carried out analysis operation.
Described control board comprises control centre, decoder driver, memory; Described control centre is connected with described memory with described decoder driver respectively, wherein:
Described control centre is used for selecting array to decipher according to the commands for controlling decoder driver of computer to list, multichannel and drives operation;
Described decoder driver is used for selecting array to decipher according to the control of described control centre to list, multichannel and drives operation;
Described memory is used to store the hypervisor of described control centre, and the test data and the various analysis data of storing tested xDSL port.
Described single, multichannel selects array to be made up of relay matrix, the multichannel that the normally closed node of described relay matrix forms relay matrix and connects multi-path line emulating instrument and a plurality of tested xDSL ports leads directly to array, and the multichannel of often opening node formation connection single channel circuit emulation instrument and a plurality of tested xDSL ports of described relay matrix is selected an array.
Described single, multichannel selects array also to lead directly to array by two multichannels of independently being made up of relay matrix and multichannels select an array to form.
A kind of method of testing that is used for xDSL provided by the invention comprises:
Step 1: the parameter thresholding that the xDSL port is tested is set;
Step 2: under the control of computer, set up corresponding circuit according to concrete test assignment and connect, and carry out concrete test, the test result data that produces in the test process is saved in the computer;
Step 3: utilize set parameter thresholding and the test result data that obtains to carry out data analysis, obtain the performance evaluation of tested xDSL port.
Compare with existing xDSL port testing device, advantage of the present invention is, adopts a comprehensive test device, promptly can carry out xDSL port transmission in enormous quantities performance test, as once can testing 64 ports simultaneously, and therefore higher testing efficiency; Can also carry out simultaneously the test of xDSL port transmission consistency of performance, as by being each xDSL port of local side apparatus, identical circuit emulation instrument is provided, and connects identical RTU, guarantee the consistency of test environment, condition, thereby improved the accuracy of uniformity test; In addition, adopt computer to participate in the control of test, not only can improve testing efficiency, avoid the manual intervention in the test process, can avoid manually-operated omission, can also improve the speed and the ability of data analysis and statistics, thereby obtain the performance of the tested xDSL port of test, statistics and assessment rapidly.
Description of drawings
Fig. 1 is existing first kind of testing apparatus schematic diagram;
Fig. 2 is existing second kind of testing apparatus schematic diagram;
Fig. 3 is a device embodiment block diagram of the present invention;
Fig. 4 is the control board logic diagram that Fig. 3 adopts;
Fig. 5 is that single, the multichannel that Fig. 3 adopts selected array of figure.
Embodiment
In the testing apparatus of existing xDSL port, based on the multi-path line emulating instrument, based on single channel circuit emulation instrument, therefore such testing apparatus only can have multichannel and tests simultaneously, and the characteristic that single-path testing had, be that above-mentioned testing apparatus only has advantage separately, can not satisfy comprehensive testing requirement.In addition, the common drawback of existing apparatus also is the craftization of testing, the incompleteness of the low and test function of therefore inevitable testing efficiency.Essence of the present invention is that above-mentioned existing apparatus is carried out the integrated form combination, and is aided with computer control, realizes the rapidity and the comprehensive unification of xDSL port test.
The present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 3 is a device embodiment block diagram of the present invention.The described xDSL port of Fig. 3 comprehensive test device, this device comprises multi-path line emulating instrument 1 and connected distance terminal unit 3 (RTU1 among the figure is to RTU64), single channel circuit emulation instrument 2 and connected distance terminal unit 4, above-mentioned multi-path line emulating instrument is 64 road emulating instruments, and described distance terminal unit is used for the terminal coupling of emulating instrument measurement circuit; It also comprises list, multichannel selection array 5, control board 6 and computer 7 in addition.In the entity of said apparatus,
Single, multichannel selects array 5 to be connected respectively with control board 6 with multi-path line emulating instrument 1, single channel circuit emulation instrument 2, be used under the control of the control board 6 that is connected with computer 7, finish multi-path line emulating instrument 1 or single channel circuit emulation instrument 2 and be connected with the selection of tested xDSL port.That is to say that single, multichannel selects the circuit connecting mode of array 5 to determine when the xDSL port on the xDSL plate 8 is tested, is to adopt multi-path line emulating instrument 1 also to adopt 2 pairs of tested xDSL ports of single channel circuit emulation instrument to test.Therefore need according to concrete test assignment in the reality, under the control of computer, select the circuit connecting mode of array 5 to control by 6 pairs of lists of control board, multichannel.Therefore, control board 6 is used to accept the control of computer, realizes single, multichannel selection array connected mode state selection.
In computer 7, store the various test programs that can finish various tests or data analysis task, and test data, it is used for control board 6 is controlled and from tested xDSL port processing test result data, and above-mentioned data are carried out analysis operation.In the described testing apparatus of Fig. 3, serial communication interface by disposing on the computer between computer 7 and control board 6 and the tested xDSL plate, (do not get rid of certainly and adopt other interface to connect as the connection of RS232 interface, as parallel interface), can make computer and control board 6 and tested xDSL plate have looser physical distance like this, make test convenient.
The logical construction of above-mentioned control board 6 is with reference to figure 4, and this control board 6 comprises control centre 61, decoder driver 62, memory 63, also comprises other known auxiliary control circuit in the reality certainly, as reset circuit, crystal oscillating circuit etc.Wherein: control centre 61, the 62 pairs of lists of commands for controlling decoder driver, the multichannel that are used for according to computer select array 5 to decipher the driving operation.Among Fig. 4, it is the CPU realization of 89C51 that described control centre adopts model, and decoder driver 62 adopts common decoding circuit and drive circuit to constitute.Memory 63 is used to store the hypervisor and the control data of control centre, and test result data and various analysis data, the intermediate data etc. of storing tested xDSL port.
Above-mentioned single, multichannel selects array 5 to be made up of relay matrix, with reference to figure 5.Among Fig. 5, adopt a relay matrix to realize that multichannel leads directly to array and multichannel is selected an array, in above-mentioned realization, the multichannel that the normally closed node of described relay matrix forms relay matrix and connects multi-path line emulating instrument and a plurality of tested xDSL ports leads directly to array, and the multichannel of often opening node formation connection single channel circuit emulation instrument and a plurality of tested xDSL ports of described relay matrix is selected an array.Adopt relay array shown in Figure 5, control relay S1～the S64 of the subscribers feeder port Port1～Port64 of the xDSL plate that normal condition is tested by relay matrix opens directly and Line1～Line64 leads directly to and is connected, be connected to multi-path line emulating instrument 1, realize the straight-through array functional of multichannel.Issue orders by 7 pairs of control boards 6 of computer, control board 6 is controlled wherein certain road relay closes according to order, can realize that 64 the tunnel select 1 function, even certain the xDSL port among above-mentioned Port1～Port64 is connected to TestA, TestB, by TestA, the xDSL port on the xDSL plate that TestB output is chosen is connected to single channel circuit emulation instrument 2.
Need to prove, straight-through array of the multichannel that above-mentioned single, multichannel selects array to realize and multichannel select an array also can by two independently relay matrix forms that separately multichannel leads directly to array and multichannel is selected an array.
Based on the xDSL port comprehensive test device of above-mentioned Fig. 3, can carry out integration test to transmission performance of xDSL port etc.At first computer 7 is communicated by letter with control board 6 by the RS232 serial ports, the contact of the relay matrix that control is single, multichannel is selected array 5 switches, adopt multi-path line emulating instrument 1 to realize that multichannel xDSL port carries out transmission performance test and the adjacent xDSL port test that influences each other automatically, adopts an identical route road emulating instrument 2 to carry out the uniformity test of all xDSL port transmission performances.Serve as list, multichannel selection array owing to adopt 64 road relay matrix in the embodiment shown in fig. 3, can realize that 64 the road to 64 the tunnel is straight-through and 64 select 1 function, by 64 external route road emulating instruments, realize that promptly 64 the road carry out the test that influences each other of the performance test of xDSL port transmission and adjacent xDSL port simultaneously; Adopt same route road emulating instrument 2 to carry out all xDSL port transmission consistency of performance tests.In the present embodiment, Control Software adopts TCL (Tool command Language Tool Command Language) programming, select array to realize that different hardware connects by single, the multichannel of serial ports control device, and the serial ports that can insert consistency operation system or computer 7 by xDSL is directly gathered the transmission performance parameter of the xDSL port of xDSL veneer, analyze and the statistical test result, by predefined thresholding, find out undesirable xDSL port automatically; Analysis xDSL port test data set in advance xDSL port transmission performance parameter and the statistical average performance differs thresholding, find out the xDSL port that does not satisfy coherence request; Carry out adjacent xDSL port and influence each other when testing, tested xDSL port of training is trained adjacent xDSL port then earlier, and whether the transmission performance parameter that detects tested xDSL port changes, and judges whether xDSL port performance interacts.
XDSL plate among Fig. 3 is the local side access device, supports multichannel xDSL to insert, and inserts as 64 ports.The straight-through array of the multiselect that single, multichannel selects array 5 to realize can be realized the straight-through connection of 64 road xDSL ports to 64 route road emulating instruments, satisfies many xDSL port transmission performance and tests simultaneously; The multichannel that realizes selects an array to choose one the tunnel wantonly from multichannel xDSL port, be connected to single channel circuit emulation instrument, realize the simulation of the different line lengths of an xDSL port, thereby can test xDSL port transmission performance, the consistency of assessment xDSL port transmission performance.Computer is by the control of RS-232 serial ports control xDSL port selection and circuit emulation instrument; Multichannel and single channel circuit emulation instrument are the not collinear footpath of simulation, and as 0.4mm, the twisted-pair feeder of 0.5mm diameter and different length are 5km as length, and step-length is Line Attenuation and the impedance operator of 500m.Control board is finished and compunication, and conversation test control and test data are finished the control and the circuit emulation instrument length of the relay matrix of list, multichannel selection array and selected.
The following method of concrete employing of xDSL port comprehensive test device shown in Figure 3 is finished the test to the xDSL port:
The first step is provided with test data.This step mainly is provided with the various threshold data such as line parameter circuit value that the xDSL port test needs, and when xDSL port transmission performance and xDSL port transmission uniformity test are set by xDSL port training data, as port training speed, training time, noise margin, transmitted power, Line Attenuation etc.Pre-set above-mentioned parameter and threshold value thereof, promptly can realize the contrast of test result and set point, judge whether tested xDSL port meets the demands.
In second step, select test assignment.This routine described test assignment comprises: the performance test of many xDSL port transmission, test that xDSL port transmission consistency of performance is tested and the xDSL port influences each other.
In the 3rd step, set up the circuit connection and carry out concrete test operation according to the test assignment of above-mentioned selection.At first send test command by computer 7, the relay matrix that decoder driver 62 drivings are single, multichannel is selected array by control board 6 connects test circuit.Specifically, when carrying out the performance test of many xDSL port transmission, the node of control relay matrix is opened, relay matrix is straight-through, directly link to each other with multi-path line emulating instrument 1, realize the straight-through function of multichannel, test simultaneously to carry out 64 port transmission performances, and, realize the simulation of different length and standard loop by control multi-path line emulating instrument.
Carry out the xDSL port and influence each other when test, by the xDSL port is controlled, control tested xDSL port and adjacent xDSL port training, go training, and the training data that reads tested xDSL port, whether contrast influences each other.Carrying out the test of xDSL port transmission consistency of performance, pass through computer command, operation control panel 6 drives relay matrix, realize 1---the 64 tunnel select a function, to finish the function that any one xDSL port switches to single channel circuit emulation instrument 2, realize that 64 ports are connected to the demand of same circuit emulation instrument and terminal equipment, thereby carry out xDSL port transmission consistency of performance contrast test.
When above-mentioned concrete test, select corresponding test xDSL port and different circuit emulation length as required, and automatically training data is gathered contrast and statistics.
The 5th step, analytical test result and test data.To the test result and the test data of different xDSL ports, different circuit emulation length, carry out analytic statistics and the threshold value set relatively, thereby draw xDSL port transmission performance, the whether interactional evaluation of consistency and adjacent xDSL port.
In a word, according to the method described above the xDSL port is tested, can finish automatic test assignment rapidly, reliably and finish the assessment of xDSL port transmission performance, the assessment and the interactional assessment of xDSL port of xDSL port transmission consistency of performance, therefore can obtain the transmission performance of tested xDSL port rapidly, exactly.
Claims (5)
1, a kind of testing apparatus that is used for xDSL comprises multi-path line emulating instrument and connected distance terminal unit, single channel circuit emulation instrument and connected distance terminal unit, it is characterized in that also comprising: single, multichannel is selected array, control board, computer, wherein:
Single, multichannel selects array to be connected respectively with control board with multi-path line emulating instrument, single channel circuit emulation instrument, be used under the control of the control board that is connected with computer, finish multi-path line emulating instrument or single channel circuit emulation instrument and be connected with the selection of tested xDSL port;
Control board is used to accept the control of computer, realizes single, multichannel selection array connected mode state selection;
Computer is used for control board is controlled and from tested xDSL port processing test result data, and above-mentioned data is carried out analysis operation.
2, the testing apparatus that is used for xDSL according to claim 1 is characterized in that, described control board comprises control centre, decoder driver, memory; Described control centre is connected with described memory with described decoder driver respectively, wherein:
Described control centre is used for selecting array to decipher according to the commands for controlling decoder driver of computer to list, multichannel and drives operation;
Described decoder driver is used for selecting array to decipher according to the control of described control centre to list, multichannel and drives operation;
Described memory is used to store the hypervisor of described control centre, and the test data and the various analysis data of storing tested xDSL port.
3, the testing apparatus that is used for xDSL according to claim 1, it is characterized in that, described single, multichannel selects array to be made up of relay matrix, the multichannel that the normally closed node of described relay matrix forms relay matrix and connects multi-path line emulating instrument and a plurality of tested xDSL ports leads directly to array, and the multichannel of often opening node formation connection single channel circuit emulation instrument and a plurality of tested xDSL ports of described relay matrix is selected an array.
4, the testing apparatus that is used for xDSL according to claim 1 is characterized in that, described single, multichannel selects array to comprise that two multichannels of independently being made up of relay matrix lead directly to array and multichannels are selected an array.
5, the described method of testing that is used for the testing apparatus of xDSL of a kind of claim 1 is characterized in that comprising:
Step 1: the parameter thresholding that the xDSL port is tested is set;
Step 2: under the control of computer, set up corresponding circuit according to concrete test assignment and connect, and carry out concrete test, the test result data that produces in the test process is saved in the computer;
Step 3: utilize set parameter thresholding and the test result data that obtains to carry out data analysis, obtain the performance evaluation of tested xDSL port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031592589A CN100490359C (en) | 2003-05-10 | 2003-09-12 | Testing apparatus and method for XDSL |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03128778.6 | 2003-05-10 | ||
| CN03128778 | 2003-05-10 | ||
| CNB031592589A CN100490359C (en) | 2003-05-10 | 2003-09-12 | Testing apparatus and method for XDSL |
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| CN1549467A CN1549467A (en) | 2004-11-24 |
| CN100490359C true CN100490359C (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031592589A Expired - Fee Related CN100490359C (en) | 2003-05-10 | 2003-09-12 | Testing apparatus and method for XDSL |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417099C (en) * | 2005-04-05 | 2008-09-03 | 华为技术有限公司 | Method for parallel detecting XDSL and testing equipment |
| CN1812295B (en) * | 2005-11-28 | 2011-05-11 | 北京星河亮点通信软件有限责任公司 | Method for testing 3G terminal radio frequency consistency |
| CN1988568B (en) * | 2005-12-20 | 2010-10-06 | 上海欣泰通信技术有限公司 | Detecting method for no-electric terminal of asymmetric digital users |
| CN100469021C (en) * | 2006-08-25 | 2009-03-11 | 鸿富锦精密工业（深圳）有限公司 | Testing system and method for modem of digital subscriber's line |
| CN102437885A (en) * | 2011-09-06 | 2012-05-02 | 飞创(苏州)电讯产品有限公司 | Communication equipment test device |
| CN103051495B (en) * | 2012-12-19 | 2015-06-17 | 瑞斯康达科技发展股份有限公司 | Method and system for determining carrying capacity of network service |
| CN106597184A (en) * | 2016-12-30 | 2017-04-26 | 陕西海泰电子有限责任公司 | Automation test system based on hardware scanning technique, and test method thereof |
| CN110838956A (en) * | 2019-11-26 | 2020-02-25 | 苏州裕太车通电子科技有限公司 | Automatic testing device and method for Ethernet communication distance |
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