CN1299472C - Composite switching array and branching apparatus testing method therewith - Google Patents
Composite switching array and branching apparatus testing method therewith Download PDFInfo
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- CN1299472C CN1299472C CNB2004100460124A CN200410046012A CN1299472C CN 1299472 C CN1299472 C CN 1299472C CN B2004100460124 A CNB2004100460124 A CN B2004100460124A CN 200410046012 A CN200410046012 A CN 200410046012A CN 1299472 C CN1299472 C CN 1299472C
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Abstract
The present invention discloses a composite switch array and a method for testing a branch circuit device which adopts the array. The composite switch array comprises a plurality of single-pole single-throw switch blocks, wherein each single-pole single-throw switch block is composed of three single-pole single-throw switches, namely a receiving end switch, a sending end switch and a cascade connection switch; in the single-pole single-throw switch blocks, one end of each receiving end switch is connected with one end of another receiving end switch in a short way, and the other ends of the receiving end switches are connected with receiving ends of corresponding branch circuits; in the single-pole single-throw switch blocks, one end of each sending end switch is connected with one end of another sending end switch in a short way, and the other ends of the sending end switches are connected with sending ends of corresponding branch circuits; in the single-pole single-throw switch blocks, each cascade connection switch is connected with signal sending ends and signal receiving ends of the two neighboring branch circuits. The switch array and the testing method provided by the present invention have the advantages that the number of connecting points of a relay passed by signals sent by an error code device is irrelevant to the number of the branch circuits, and the test of a branch circuit device with large capacity can be carried out accurately and rapidly.
Description
Technical field
The present invention relates to the digital communication equipment measuring technology, in particular to a kind of method of testing of utilizing the composite switch array to carry out branch equipment, and the composite switch array.
Background technology
In information-intensive society, people wish can be at any time, any place, with any mode easily mode obtain the information that needs, the continuous growth of this business demand directly causes the unlimited demand to the message capacity bandwidth, and big Capacity Optical telecommunication transmission system equipment becomes the main flow equipment of various places backbone network, metropolitan area network and access network construction.
Maturation along with digital synchronous transmission equipment product design technology, for monolithic branch equipment and saying independently, its port capacity is increasing, from early stage 4 the tunnel, the 8 tunnel up till now 32 the tunnel, the 63 tunnel or the like, this has higher requirement for its test, how to guarantee test mass, improves test speed, how accurately fault location becomes the key that transmission product is tested and keeped in repair.
For transmission equipment, ISBN7-115-09504-3/TN.1748 " optical synchronization digital transmission system test " sets forth need carry out interface function test and transmission error code performance test usually, whether each interface of the main checking of interface function test has fault, and the fault location passage; The long-time bit error performance of product is then checked in the transmission error code performance test.
At above-mentioned two class testings, general now employing testing equipment and corresponding test method as described below:
1, as shown in Figure 1, error code testing equipment is linked to each other with every branch road respectively, can test respectively, can judge so whether every branch road is normal, but owing to will test respectively every branch road, efficient is very low at every branch road.
2, as shown in Figure 2, the sending out of error code testing equipment and head and the tail branch road, receiving end are linked to each other, the Transmitting and Receiving End of adjacent legs is linked to each other with lead, can be at many direct cascade tests of branch road, if each branch road is all intact, only need once test just can judge that each branch road of branch equipment is normal like this, but if some branch road of branch equipment has fault, need to locate out of order branch road according to method 1 described method, testing efficiency is difficult to improve.
3, in order to solve existing defective in above-mentioned 1 and 2, Chinese patent application " daisy chain switch matrix and use its transmission equipment method of testing " (application number: 01111016.3 inventor: Huawei Tech Co., Ltd is sliding thinks true, Cui Guangzhu) has proposed a kind of method of testing that adopts the daisy chain switch matrix, as shown in Figure 3.The method that this patent adopted is that every branch road of branch equipment links to each other with error code testing equipment by 1 dpdt relay, the relay of every branch road correspondence can or insert error code testing equipment with this branch road bypass, and two contacts of two relays of adjacent legs correspondence link to each other.As shown in Figure 3, when the left side is swung in the contact of dpdt relay (dotted line position), corresponding branch road is not inserted error code equipment by bypass; When the right side is swung in the contact of dpdt relay (solid line position), corresponding branch road inserts error code testing equipment.Adopt this switch matrix, can be with each bar branch road cascade test, also can be only will be wherein several branch road cascades tests or test branch road wherein only.Adopt this matrix to carry out the cascade test and can improve testing efficiency, in order to locate wherein out of order branch road, can be by the method for grouping, all branch roads are divided into several groups, respectively every group of branch road carried out the cascade test again, find out the group at fault branch place, be divided into littler group again to out of order group and test again, until navigating to concrete fault branch.But said method is for a more situation of travel permit number, there is obvious defects, because daisy chain switch matrix that it adopts and corresponding detection method have used the method for bypass branch to come fault branch is positioned, under the more situation of a travel permit number, this method will make the more relay node of signal demand process that sends from error code testing equipment, to cause the serious distortion of signal test can't to be carried out, also can't carry out fault location tested branch equipment down to error code.
Summary of the invention
Purpose of the present invention is exactly at above-mentioned the deficiencies in the prior art, proposes a kind of composite switch array and adopts the branch equipment method of testing of this array, can be accurately, fast, big capacity ground carries out the test of branch equipment.
Core concept of the present invention is: when adopting the composite switch array to carry out the branch equipment test, at first carry out full concatenated error code test, switch arrays are controlled to be full branch road cascade system, if error code testing passes through, each branch road that then shows this branch equipment is all normal, EOT.If full concatenated error code test is not passed through, show that then some branch road has fault, need to adopt the method for grouping test to carry out failure location.Divide for several groups that form by adjacent legs with each branch road of branch equipment, the control switch array is the adjacent legs cascade system, with each the branch road cascade in every group, carries out error code testing respectively, find out the group at fault branch place, in these groups, be divided into littler group again, by proceed the packet concatenation test with quadrat method, until being sub-divided into the wall scroll branch road, the control switch array is single branch road connected mode, the wall scroll branch road is carried out error code testing, find the out of order branch road of each bar, finish fault location.
A kind of composite switch array is used to connect branch equipment, comprises some single-pole single-throw switch (SPST) groups, and described each single-pole single-throw switch (SPST) group is made up of three single-pole single-throw switch (SPST)s: receiving terminal switch, transmitting terminal switch and cascaded switch; One end short circuit of each the receiving terminal switch in the described single-pole single-throw switch (SPST) group together, the other end connects the receiving terminal of corresponding branch road; One end short circuit of each the transmitting terminal switch in the described single-pole single-throw switch (SPST) group together, the other end connects the transmitting terminal of corresponding branch road; Each cascaded switch in the described single-pole single-throw switch (SPST) group connects two neighbor branch circuit and receiving terminal.
Above-mentioned single-pole single-throw switch (SPST) can be the single-pole single-throw(SPST electronic switch, also can be the single-pole single-throw(SPST relay switch.
A kind of branch equipment method of testing that adopts above-mentioned composite switch array, it comprises the following steps: based on a test macro that comprises that error code testing equipment, composite switch array, tested branch equipment and Cross Connect equipment are formed
Step 2, with whole branch roads be divided into two greatly the group, control composite switch array is the adjacent legs cascade system: the receiving terminal switch of each first single-pole single-throw switch (SPST) group of big group and the transmitting terminal switch closure of last single-pole single-throw switch (SPST) group, all cascaded switch closures in should big group, the switch of other in this big group all disconnects; Respectively two big group branch roads are carried out error code testing, error code testing is not passed through big group, carry out next step;
Step 3, the big group of branch road that error code testing is not passed through are divided into two groups again, control composite switch array is the adjacent legs cascade system: the receiving terminal switch of first single-pole single-throw switch (SPST) group of each group and the transmitting terminal switch closure of last single-pole single-throw switch (SPST) group, all cascaded switch closures in this group, the switch of other in this group all disconnects; Respectively two group's branch roads are carried out error code testing;
Step 4, group's branch road that error code testing is not passed through are divided into two groups again, carry out error code testing respectively according to the method identical with above-mentioned steps three, so constantly reduce the scope, until navigating to single branch trouble.
The switch arrays and the branch equipment method of testing that adopt the present invention to propose with this switch arrays, the relay tip number of the signal process that error code equipment sends out and the bar number of branch road are irrelevant, can carry out the test of big capacity branch equipment accurately and rapidly; ,, go for the test of the branch equipment of different capabilities so several switch matrix module cascades are used because but switch matrix is modularization cascade expansion.
Description of drawings
Fig. 1 is existing first kind of method of testing schematic diagram at branch equipment;
Fig. 2 is existing second kind of method of testing schematic diagram at branch equipment;
Fig. 3 is existing the third method of testing schematic diagram at branch equipment;
Fig. 4 is the structure chart of the test macro of branch equipment involved in the present invention;
Fig. 5 is the structural representation of the composite switch array of the present invention's proposition;
Fig. 6 is the structural representation of a plurality of composite switch array module cascade.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Fig. 1, Fig. 2 and method of testing shown in Figure 3 had been done detailed explanation in background technology.
Fig. 4 is the structure chart of the test macro of branch equipment involved in the present invention.As shown in Figure 4, test macro is made up of error code testing equipment, switch arrays, tested branch equipment, Cross Connect equipment.Error code testing equipment sends test signal, and receives the signal that sends from branch equipment, judges the error condition of received signal; Switch arrays connect error code testing equipment and tested branch equipment; The effect of Cross Connect equipment is a loopback of realizing each tributary signal of tested branch equipment, and the signal that every branch road is received can send from the transmitting terminal of branch road.
Fig. 5 is the structural representation of the composite switch array of the present invention's proposition.The composite switch array that the present invention proposes comprises some single-pole single-throw switch (SPST) groups, and described each single-pole single-throw switch (SPST) group is made up of three single-pole single-throw switch (SPST)s: receiving terminal switch, transmitting terminal switch and cascaded switch; One end short circuit of each the receiving terminal switch in the described single-pole single-throw switch (SPST) group together, the other end connects the receiving terminal of corresponding branch road; One end short circuit of each the transmitting terminal switch in the described single-pole single-throw switch (SPST) group together, the other end connects the transmitting terminal of corresponding branch road; Each cascaded switch in the described single-pole single-throw switch (SPST) group connects two neighbor branch circuit and receiving terminal.What in one embodiment of the invention, described single-pole single-throw switch (SPST) adopted is the single-pole single-throw(SPST relay switch.As shown in Figure 5, the composite switch array that the present invention proposes is made up of several single-pole single-throw(SPST relay groups, a relay group of the corresponding switch arrays of every branch road of branch equipment, each relay group is made up of 3 relay K na, Knb and Knc, wherein: K1a, K2a ..., Kna etc. is the receiving terminal relay, is used for connecting the signal receiving end of each branch road and the signal sending end of error code equipment; K1b, K2b ..., Knb etc. is the transmitting terminal relay, is used for connecting the signal sending end of each branch road and the signal receiving end of error code equipment; K1c, K2c ..., K (n-1) c etc. is cascade relay, is used for connecting the signal sending end and the receiving terminal of adjacent two branch roads.
Closure, the disconnection of these relays by the control switch array can make the three kinds of modes that are connected with of branch equipment and error code testing equipment: full branch road cascade system, adjacent legs cascade system, single branch road connected mode.The relay status of full branch road cascade system is: each receiving terminal relay has only the K1a closure, and other receiving terminal relay disconnects; Each transmitting terminal relay has only the Knb closure, and other transmitting terminal relay disconnects; All cascade relay K1c, K2c ... K (n-1) c is closed.Each relay status of adjacent legs cascade system is: have only the receiving terminal relay closes of the first via of this group branch road in each receiving terminal relay, other receiving terminal relay disconnects; Have only the transmitting terminal closure on last road of this group branch road in each transmitting terminal relay, other transmitting terminal relay disconnects; Have only the cascade relay closure of each adjacent legs in this group branch road in each cascade relay, other cascade relay all disconnects.Each relay status of single branch road connected mode is: have only the receiving terminal relay and the transmitting terminal relay closes of this branch road correspondence, other each relay all disconnects.Full branch road cascade system in three kinds of connected modes is used for judging whether each branch road is normal, and adjacent legs cascade system and single branch road connected mode are used for the fault location branch road.
Fig. 6 is the structural representation of a plurality of composite switch array module cascade.But the composite switch array that the present invention proposes can adopt the mode of modularization cascade expansion, with the test of the branch equipment that is applicable to different capabilities.Suppose that each single switch array module maximum can carry out the test of 16 branch roads, for test more than the branch equipment of 16 branch roads, can use with a plurality of switch arrays module cascades, as shown in Figure 6, the R and the T end of each module are connected together respectively, can test the bigger big capacity branch equipment of branch road quantity apace.Just can use as branch equipment with 4 switch arrays module cascades for 63 the tunnel.
Be example with the test of the branch equipment of 16 branch road capacity below, be elaborated to the control of composite switch array with to the method for testing of tested branch equipment:
Step 2,16 branch roads are divided into 2 groups, the the 1st to the 8th branch road is one group, the the 9th to the 16th branch road is another group, the branch road group that the 1st to the 8th branch road is formed is carried out error code testing earlier, after the branch road group test that the 1st to the 8th branch road is formed was finished, the branch road group that the 9th to the 16th branch road is formed was carried out error code testing again;
Step 3, when the branch road group that the 1st to the 8th branch road is formed is tested, the control switch array, making the 1st to the 8th branch road is the adjacent legs cascade system, carry out error code testing, the signal that sends from error code testing equipment is input to the receiving terminal of the 1st branch road, through the 1st to the 8th branch road and through the Cross Connect equipment loopback, output to the receiving terminal of error code testing equipment from the transmitting terminal of the 8th branch road.If error code testing does not pass through, show that some branch road has fault in the 1st to the 8th branch road, forward step 4 to; If error code testing passes through, show that the 1st to the 8th branch road is all normal, forward step 5 to;
Step 4,8 branch roads will organizing are further divided into per 4 the tunnel one groups, press and step 3 similar methods, find out wherein out of order one group of 4 branch road.The rest may be inferred, continues to be divided into per 2 the tunnel one groups, and until per 1 the tunnel one group, the control switch array is single branch road connected mode, and the error condition of test wall scroll branch road is until finding out whole out of order branch roads; Forward step 5 behind the EOT to;
Step 5, when the branch road group that the 9th to the 16th branch road is formed is tested, the control switch array, making the 9th to the 16th branch road is the adjacent legs cascade system, carry out error code testing, the signal that sends from error code testing equipment is input to the receiving terminal of the 9th branch road, through the 9th to the 16th branch road and through the Cross Connect equipment loopback, output to the receiving terminal of error code testing equipment from the transmitting terminal of the 16th branch road.If error code testing passes through, show that the 9th to the 16th branch road is all normal, forward step 6 to; If error code testing does not pass through, show that some branch road has fault in the 9th to the 16th branch road, press and step 4 similar methods, until finding out whole out of order branch roads; Forward step 6 behind the EOT to;
Step 6, whole EOT.
Claims (5)
1, a kind of composite switch array is used to connect branch equipment, it is characterized in that comprising some single-pole single-throw switch (SPST) groups, and described each single-pole single-throw switch (SPST) group is made up of three single-pole single-throw switch (SPST)s: receiving terminal switch, transmitting terminal switch and cascaded switch; One end short circuit of each the receiving terminal switch in the described single-pole single-throw switch (SPST) group together, the other end connects the receiving terminal of corresponding branch road; One end short circuit of each the transmitting terminal switch in the described single-pole single-throw switch (SPST) group together, the other end connects the transmitting terminal of corresponding branch road; Each cascaded switch in the described single-pole single-throw switch (SPST) group connects two neighbor branch circuit and receiving terminal.
2, switch arrays according to claim 1 is characterized in that: described single-pole single-throw switch (SPST) is the single-pole single-throw(SPST relay switch.
3, switch arrays according to claim 1 is characterized in that: described single-pole single-throw switch (SPST) is the single-pole single-throw(SPST electronic switch.
4, a kind of branch equipment method of testing that adopts the arbitrary described composite switch array of claim 1-3, it is characterized in that comprising the following steps: based on a test macro that comprises that error code testing equipment, composite switch array, tested branch equipment and Cross Connect equipment are formed
Step 1, control composite switch array are full branch road cascade system, carry out error code testing: the receiving terminal switch of first single-pole single-throw switch (SPST) group and the transmitting terminal switch closure of last single-pole single-throw switch (SPST) group, all cascaded switch closures, other switch all disconnects; If error code testing passes through, then finish test;
Step 2, with whole branch roads be divided into two greatly the group, control composite switch array is the adjacent legs cascade system: the receiving terminal switch of each first single-pole single-throw switch (SPST) group of big group and the transmitting terminal switch closure of last single-pole single-throw switch (SPST) group, all cascaded switch closures in should big group, the switch of other in this big group all disconnects; Respectively two big group branch roads are carried out error code testing, error code testing is not passed through big group, carry out next step;
Step 3, the big group of branch road that error code testing is not passed through are divided into two groups again, control composite switch array is the adjacent legs cascade system: the receiving terminal switch of first single-pole single-throw switch (SPST) group of each group and the transmitting terminal switch closure of last single-pole single-throw switch (SPST) group, all cascaded switch closures in this group, the switch of other in this group all disconnects; Respectively two group's branch roads are carried out error code testing;
Step 4, group's branch road that error code testing is not passed through are divided into two groups again, carry out error code testing respectively according to the method identical with above-mentioned steps three, so constantly reduce the scope, until navigating to single branch trouble.
5, method of testing according to claim 4 is characterized in that: when the branch road group that test is not passed through is divided into groups again, branch road to be divided into groups is divided into the same number of two groups.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100460124A CN1299472C (en) | 2004-06-01 | 2004-06-01 | Composite switching array and branching apparatus testing method therewith |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100460124A CN1299472C (en) | 2004-06-01 | 2004-06-01 | Composite switching array and branching apparatus testing method therewith |
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| CN1585355A CN1585355A (en) | 2005-02-23 |
| CN1299472C true CN1299472C (en) | 2007-02-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1878126A (en) | 2005-06-07 | 2006-12-13 | 华为技术有限公司 | Method for realizing signalling proxy in communication network |
| CN100449966C (en) * | 2005-08-01 | 2009-01-07 | 中兴通讯股份有限公司 | Optical switch reversing device for test of multiple light jaws equipment |
| CN101763112B (en) * | 2008-12-22 | 2012-08-08 | 重庆川仪自动化股份有限公司 | I/O module automatic detection system of process automation system |
| CN103417205B (en) * | 2012-05-23 | 2015-05-06 | 中国科学院电子学研究所 | Neural information detecting system |
| CN106992390B (en) * | 2017-05-24 | 2019-06-04 | 中国电子科技集团公司第四十一研究所 | A kind of large-scale switches matrix array |
| CN110927489B (en) * | 2019-11-27 | 2020-09-18 | 广州思泰信息技术有限公司 | Distribution automation feeder terminal test system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5369642A (en) * | 1992-05-29 | 1994-11-29 | Nec Corporation | Switcher for redundant signal transmission system |
| US6215856B1 (en) * | 1998-08-11 | 2001-04-10 | Avaya Technology Corp. | Dual mode monitor module |
| CN1375844A (en) * | 2001-03-19 | 2002-10-23 | 华为技术有限公司 | Daisy chain switch matrix and the measuring method of transmission equipment with it |
-
2004
- 2004-06-01 CN CNB2004100460124A patent/CN1299472C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5369642A (en) * | 1992-05-29 | 1994-11-29 | Nec Corporation | Switcher for redundant signal transmission system |
| US6215856B1 (en) * | 1998-08-11 | 2001-04-10 | Avaya Technology Corp. | Dual mode monitor module |
| CN1375844A (en) * | 2001-03-19 | 2002-10-23 | 华为技术有限公司 | Daisy chain switch matrix and the measuring method of transmission equipment with it |
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