CN101839952B - Method and system for testing surge - Google Patents
Method and system for testing surge Download PDFInfo
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- CN101839952B CN101839952B CN2010101574433A CN201010157443A CN101839952B CN 101839952 B CN101839952 B CN 101839952B CN 2010101574433 A CN2010101574433 A CN 2010101574433A CN 201010157443 A CN201010157443 A CN 201010157443A CN 101839952 B CN101839952 B CN 101839952B
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Abstract
The embodiment of the invention provides a method and a system for testing surge, and the method comprises the following steps: receiving a surge signal sent by a surge signal generator through a coupling network by a second fixture via a first port thereof, wherein the first port is connected with the output port of the coupling network through a first connection wire; transmitting the surge signal to a port of a first fixture by the second fixture through a second port thereof, and transmitting the surge signal to a port to be tested of a device to be tested by a third port of the second fixture to test the surge tolerance of the port to be tested; connecting the second port with the port of the first fixture via a second connecting wire, and connecting the third port with the port to be tested via a third connecting wire; and connecting each two of the first port, the second port and the third port. The embodiment of the invention realizes the aim of testing surge tolerance on a port without a protection circuit on the premise that one port has a protection circuit while the other connected port has no protection circuit.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of surge test method and system.
Background technology
According to networking products layering connection characteristics; A switch often is divided into second line of a couplet port and first line of a couplet port; Second line of a couplet port is used for connecting the equipment than self low one deck; First line of a couplet port then is used for connecting the equipment than from height one deck, for example: a switch that is operated in 2 layers, its second line of a couplet port and PC (Personal Computer; Hereinafter to be referred as: PC) connect, first line of a couplet port then is connected with any one second line of a couplet port of 3 layer switchs.Line between 2 layers of equipment and the 3 layers of equipment often is exposed to outdoor or is in the external environment condition of very severe, is very easy to introduce surge.For promoting the reliability of this part port; More common way is to increase extra holding circuit at first line of a couplet port; 2 layers of equipment have increased the barrier propterty of meeting lifting self port after the holding circuit; And 3 layers of unshielded second line of a couplet port of equipment receives the influence of 2 layers of equipment protection circuit with after 2 layers of equipment are connected, and can be more prone on the contrary damage; This is because after surge intrudes on the connecting line between 2 layers of equipment and the 3 layers of equipment, can the generation superpotential on this connecting line, and then can produce excess current.For 2 layers of equipment that holding circuit is arranged; Excess current can not threaten the first line of a couplet port of these 2 layers of equipment; But for 3 layers of equipment of unprotected circuit, excess current can produce very big influence to the second line of a couplet port of these 3 layers of equipment, very easily damages this second line of a couplet port.
But prior art does not but provide a kind of effective ground method, assess have port to introduce surge in the adjacent port after, the influence that the another one port is caused.
Summary of the invention
The embodiment of the invention provides a kind of surge test method and system, to be implemented in a port holding circuit is arranged, and another port that links to each other with this port does not have under the situation of holding circuit, and test does not have the tolerance of the port of holding circuit to surge.
The embodiment of the invention provides a kind of surge test method, comprising:
Second frock receives the surging signal that the surging signal generator sends through coupling network through first port of said second frock, and said first port is connected through first connecting line with the output port of said coupling network;
Said second frock transfers to said surging signal through second port of said second frock port of first frock; And the 3rd port through said second frock transfers to the port to be measured of Devices to test with said surging signal, to test the tolerance of said port to be measured to surge; Said second port is connected through second connecting line with the port of said first frock, and said the 3rd port is connected through the 3rd connecting line with said port to be measured; Said first port, said second port link to each other with said the 3rd port in twos.
The embodiment of the invention also provides a kind of surge test system, comprising: surging signal generator, coupling network, first frock, second frock, Devices to test, first connecting line, second connecting line and the 3rd connecting line; Said second frock comprises first port, second port and the 3rd port;
Said second frock; Be used for receiving the surging signal that said surging signal generator sends through said coupling network through said first port; Said surging signal is transferred to the port of first frock through said second port; And said surging signal is transferred to the port to be measured of Devices to test through said the 3rd port, to test the tolerance of said port to be measured to surge;
Said first port is connected through said first connecting line with the output port of said coupling network; Said second port is connected through said second connecting line with the port of said first frock, and said the 3rd port is connected through said the 3rd connecting line with said port to be measured; Said first port, said second port link to each other with said the 3rd port in twos.
Pass through the embodiment of the invention; The surging signal that second frock will receive through first port of this second frock; The port to be measured that second port and the 3rd port through this second frock is transferred to first frock and Devices to test respectively is to test the tolerance of this port to be measured to surge.Thereby realized at a port holding circuit being arranged, and another port that links to each other with this port does not have under the situation of holding circuit, test does not have the tolerance of the port of holding circuit to surge.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of an embodiment of surge test method of the present invention;
Fig. 2 is the process flow diagram of another embodiment of surge test method of the present invention;
Fig. 3 is the structural representation of a surge test embodiment of system of the present invention;
Fig. 4 is the structural representation of an embodiment of the present invention's first frock;
Fig. 5 is the structural representation of the present invention first another embodiment of frock.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope that the present invention protects.
Fig. 1 is the process flow diagram of an embodiment of surge test method of the present invention, and as shown in Figure 1, this surge test method can comprise:
In the present embodiment, after first frock is included in and is higher than predetermined voltage, present the circuit of low impedance characteristic over the ground, this circuit can be made up of the device that has the voltage clamp characteristic; Wherein, voltage clamp is meant voltage is remained on below the fixing magnitude of voltage that the device that has the voltage clamp characteristic can be gas-discharge tube or voltage dependent resistor (VDR) etc.
In the present embodiment, the port of first port, second port, the 3rd port, first frock and port to be measured are the RJ45 port; It is reticle plug provided that one end of first connecting line has the RJ45 type, and it is reticle plug provided that the other end does not have the RJ45 type; 8 lines that first connecting line does not have in the reticle plug provided end of RJ45 type are divided into first group of line and second group of line, comprise plug pin number mutually different 4 lines respectively in first group of line and second group of line; It is reticle plug provided that the two ends of second connecting line and the 3rd connecting line all have the RJ45 type.
Particularly; In the present embodiment; The output port of first port and coupling network through first connecting line be connected can for: first connecting line has the reticle plug provided end of RJ45 type and is connected with first port; 4 lines when carrying out testing for the first time in first group of line are connected with 4 taps of the output port of coupling network, and 4 lines when carrying out testing the second time in second group of line are connected with 4 taps of the output port of coupling network.
In a kind of implementation of present embodiment; Second frock transfers to this surging signal through second port of this second frock the port of first frock; And the 3rd port through this second frock transfers to the port to be measured of Devices to test with this surging signal, with test this port to be measured to the tolerance of surge can for:
Second frock is passed through the surging signal of second port of this second frock to the port transmission pre-determined number of first frock, and passes through the surging signal of the 3rd port of this second frock to the port transmission pre-determined number to be measured of Devices to test; Break off being connected between the 3rd port of port to be measured and second frock; Port to be measured is connected with the network port of operate as normal; Confirm that port to be measured satisfies after the preset working state; Raise after the peak value of said surging signal according to predetermined increment; Repeat above-mentioned steps, do not satisfy the preset working state until port to be measured, the peak value of surging signal did not deduct the value that obtains after the predetermined increment and is the tolerance value of this port to be measured to surge when port then to be measured did not satisfy the preset working state.
The foregoing description has realized at a port holding circuit being arranged, and another port that links to each other with this port does not have under the situation of holding circuit, and test does not have the tolerance of the port of holding circuit to surge.
Fig. 2 is the process flow diagram of another embodiment of surge test method of the present invention, and as shown in Figure 2, this surge test method can comprise:
Particularly, can a high-voltage value be set, for example: 3kV through the guidance panel of surging signal generator; And test number (TN) be set to positive-negative polarity each 5 times, it is 1 minute that each intertrial interval is set.After parameter is provided with completion, the surging signal generator according to the parameter that is provided with will with 1 minute be interval, export positive high-voltage value (for example: 3kV) and the high-voltage value of bearing (for example :-3kV) respectively 5 times.Then, the surging signal generator can stop automatically.
Below only be the example that the parameter of surging signal generator is set, the embodiment of the invention is not limited in this, and the embodiment of the invention does not limit the parameter setting of surging signal generator.
In the present embodiment, first port is the RJ45 port, and it is reticle plug provided that an end of first connecting line has the RJ45 type, and it is reticle plug provided that the other end does not have the RJ45 type; 8 lines that first connecting line does not have in the reticle plug provided end of RJ45 type are divided into first group of line and second group of line; Comprise plug pin number mutually different 4 lines respectively in first group of line and second group of line; For example: comprise in first group of line that plug pin number is 1,2,3 and 6 line, comprise in second group of line that plug pin number is 4,5,7 and 8 line; The output port of coupling network comprises 4 taps; In the present embodiment; First connecting line has the reticle plug provided end of RJ45 type and is connected with first port; 4 lines when carrying out testing for the first time in first group of line are connected with 4 taps of the output port of coupling network, and 4 lines when carrying out testing the second time in second group of line are connected with 4 taps of the output port of coupling network.
It below only is an example of the present invention; Use 4 lines in second group of line to be connected in the time of can certainly carrying out testing for the first time with 4 taps of the output port of coupling network; Use 4 lines in first group of line to be connected when carrying out testing for the second time with 4 taps of the output port of coupling network; The embodiment of the invention does not limit this; But the embodiment of the invention 4 lines in first group of line when carrying out testing for the first time are connected with 4 taps of the output port of coupling network, and 4 taps of 4 lines when carrying out testing the second time in second group of line and the output port of coupling network are connected to example and describe.
In the present embodiment; Above-mentioned pre-determined number is 5; 5 positive high-voltage values of surging signal generator output (for example: 3kV) with 5 negative high-voltage values (for example :-3kV); First port through second frock is input to second frock, then the port that is transferred to first frock respectively of second port and the 3rd port through second frock and the port to be measured of Devices to test.
In the present embodiment; The port simulation of first frock is connected to the ethernet port of protection device in actual application environment, first frock comprises one group after being higher than predetermined voltage; The circuit that presents low impedance characteristic over the ground, this circuit can be made up of the device that has the voltage clamp characteristic; Wherein, this predetermined voltage can be provided with in advance, for example: 3kV; Voltage clamp is meant voltage is remained on below the fixing magnitude of voltage that the device that has the voltage clamp characteristic can be gas-discharge tube or voltage dependent resistor (VDR) etc.
In the present embodiment, the port and the port to be measured of second port, the 3rd port, first frock are the RJ45 port, and second connecting line and the 3rd connecting line are to have the reticle plug provided netting twine of RJ45 type.
After the port to be measured of port that 5 positive high-voltage values of surging signal generator output and 5 negative high-voltage values is transferred to first frock and Devices to test, once test completion.
Wherein, this duty can be provided with according to national standard and performance requirement in advance, as the test criteria of test port to the tolerance of surge; In the present embodiment, suppose that this preset working state is: after the network port of operate as normal was connected, this port to be measured can operate as normal; Perhaps, after the network port of operate as normal is connected, this port cisco unity malfunction to be measured, but after Devices to test restarted, this port to be measured can operate as normal.Certainly this only is an example of duty, and the embodiment of the invention is not limited in this, and the embodiment of the invention does not limit the set-up mode of duty.
Satisfy the preset working state if the result of above-mentioned twice test is port to be measured, can confirm that then this port to be measured (for example: 3kV) can bear current magnitude of voltage.
After the peak value according to predetermined this surging signal of increment rising; Repeating step 201～step 205; Do not satisfy the preset working state until port to be measured, the peak value of surging signal did not deduct the value that obtains after the predetermined increment and is the tolerance value of this port to be measured to surge when then this port to be measured did not satisfy the preset working state.
Particularly, this predetermined increment is a positive number, and it is 100V that this predetermined increment can be set.
In the present embodiment, the maximum voltage value that this port to be measured can bear for this port to be measured the tolerance value of surge.Suppose to find that port to be measured does not satisfy the preset working state in the N time test; Then when N is even number; Can confirm that the maximum voltage value that this port to be measured can bear is the N-2 time employed magnitude of voltage of test; Maximum voltage value when promptly this port to be measured does not satisfy the preset working state deducts the magnitude of voltage after the 100V, is
kV in the present embodiment; When N is odd number; Can confirm that the maximum voltage value that this port to be measured can bear is the N-1 time employed magnitude of voltage of test; Maximum voltage value when promptly this port to be measured does not satisfy the preset working state deducts the magnitude of voltage after the 100V, is
in the present embodiment
The foregoing description has realized at a port holding circuit being arranged, and another port that links to each other with this port does not have under the situation of holding circuit, and test does not have the tolerance of the port of holding circuit to surge; And then strengthened the reliability of Devices to test.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of programmed instruction; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 3 is the structural representation of a surge test embodiment of system of the present invention; Surge test system in the present embodiment can realize Fig. 1 of the present invention or flow process embodiment illustrated in fig. 2; As shown in Figure 3, this surge test system can comprise: surging signal generator 31, coupling network 32, first frock 33, second frock 34, Devices to test 35, first connecting line 36, second connecting line 37 and the 3rd connecting line 38; Second frock 34 comprises first port 341, second port 342 and the 3rd port 343;
Wherein, Second frock 34; Be used for receiving the surging signal that surging signal generator 31 sends through coupling network 32 through first port 341; Through second port 342 this surging signal is transferred to the port 331 of first frock 33, and this surging signal is transferred to the port to be measured 351 of Devices to test 35, to test the tolerance of 351 pairs of surges of this port to be measured through the 3rd port 343;
In the present embodiment; First port 341 is connected through first connecting line 36 with the output port 321 of coupling network 32; Second port 342 is connected through second connecting line 37 with the port 331 of first frock 33, and the 3rd port 343 is connected through the 3rd connecting line 38 with port 351 to be measured; First port 341, second port 342 link to each other with the 3rd port 343 in twos.
In the present embodiment; Port 331 simulations of first frock 33 are connected to the ethernet port of protection device in actual application environment, first frock 33 comprises one group after being higher than predetermined voltage; The circuit that presents low impedance characteristic over the ground, this circuit can be made up of the device that has the voltage clamp characteristic; Wherein, this predetermined voltage can be provided with in advance, for example: 3kV; Voltage clamp is meant voltage is remained on below the fixing magnitude of voltage that the device that has the voltage clamp characteristic can be gas-discharge tube or voltage dependent resistor (VDR) etc.
Fig. 4 is the structural representation of an embodiment of the present invention's first frock, and as shown in Figure 4, among this embodiment, the circuit in first frock 33 is made up of gas-discharge tube.Wherein, gas-discharge tube is made up of eletrode tip, gas and outer enclosure, and the principle of work of gas-discharge tube is a gas discharge.When impressed voltage increased to the dielectric strength above gas, the gap of two interpolars was converted into conduction state with discharge breakdown by original state of insulation, and the voltage after the conducting between discharge tube the two poles of the earth maintains the residual voltage level that arc determines.
Fig. 5 is the structural representation of the present invention first another embodiment of frock, and as shown in Figure 5, among this embodiment, the circuit in first frock 33 is made up of voltage dependent resistor (VDR).Wherein, the resistive element material of voltage dependent resistor (VDR) is a semiconductor, and resistance value becomes with voltage in certain current/voltage scope.
In the present embodiment, the port 331 and the port to be measured 351 of first port 341, second port 342, the 3rd port 343, first frock 33 are the RJ45 port, and it is reticle plug provided that an end of first connecting line 36 has the RJ45 type, and it is reticle plug provided that the other end does not have the RJ45 type; It is reticle plug provided that the two ends of second connecting line 37 and the 3rd connecting line 38 all have the RJ45 type.
In the present embodiment, first port 341 is the RJ45 port, and it is reticle plug provided that an end of first connecting line 36 has the RJ45 type, and it is reticle plug provided that the other end does not have the RJ45 type; 8 lines that first connecting line 36 does not have in the reticle plug provided end of RJ45 type are divided into first group of line and second group of line; Comprise plug pin number mutually different 4 lines respectively in first group of line and second group of line; For example: comprise in first group of line that plug pin number is 1,2,3 and 6 line, comprise in second group of line that plug pin number is 4,5,7 and 8 line; The output port 321 of coupling network 32 comprises 4 taps; In the present embodiment; First connecting line 36 has the reticle plug provided end of RJ45 type and is connected with first port 341; 4 lines when carrying out testing for the first time in first group of line are connected with 4 taps of the output port 321 of coupling network 32, and 4 lines when carrying out testing the second time in second group of line are connected with 4 taps of the output port 321 of coupling network 32.
It below only is an example of the present invention; Use 4 lines in second group of line to be connected in the time of can certainly carrying out testing for the first time with 4 taps of the output port 321 of coupling network 32; Use 4 lines in first group of line to be connected when carrying out testing for the second time with 4 taps of the output port 321 of coupling network 32; The embodiment of the invention does not limit this; But the embodiment of the invention 4 lines in first group of line when carrying out testing for the first time are connected with 4 taps of the output port 321 of coupling network 32, and 4 taps of 4 lines when carrying out testing the second time in second group of line and the output port 321 of coupling network 32 are connected to example and describe.
Above-mentioned surge test system has realized at a port holding circuit being arranged, and another port that links to each other with this port does not have under the situation of holding circuit, and test does not have the tolerance of the port of holding circuit to surge; And then strengthened the reliability of Devices to test.
It will be appreciated by those skilled in the art that accompanying drawing is the synoptic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (5)
1. a surge test method is characterized in that, comprising:
Second frock receives the surging signal that the surging signal generator sends through coupling network through first port of said second frock, and said first port is connected through first connecting line with the output port of said coupling network;
Said second frock transfers to said surging signal through second port of said second frock port of first frock; And the 3rd port through said second frock transfers to the port to be measured of Devices to test with said surging signal, to test the tolerance of said port to be measured to surge; Said second port is connected through second connecting line with the port of said first frock, and said the 3rd port is connected through the 3rd connecting line with said port to be measured; Said first port, said second port link to each other with said the 3rd port in twos;
The port and the said port to be measured of said first port, said second port, said the 3rd port, said first frock are the RJ45 port;
It is reticle plug provided that one end of said first connecting line has the RJ45 type, and it is reticle plug provided that the other end does not have the RJ45 type; 8 lines that said first connecting line does not have in the reticle plug provided end of RJ45 type are divided into first group of line and second group of line, comprise plug pin number mutually different 4 lines respectively in said first group of line and second group of line;
It is reticle plug provided that the two ends of said second connecting line and said the 3rd connecting line all have the RJ45 type;
After said first frock is included in and is higher than predetermined voltage, present the circuit of low impedance characteristic over the ground; Said circuit is made up of the device that has the voltage clamp characteristic.
2. method according to claim 1 is characterized in that, said first port is connected through first connecting line with the output port of said coupling network and comprises:
Said first connecting line has the reticle plug provided end of RJ45 type and is connected with said first port; 4 lines when carrying out testing for the first time in said first group of line are connected with 4 taps of the output port of said coupling network, and 4 lines when carrying out testing for the second time in said second group of line are connected with 4 taps of the output port of said coupling network.
3. method according to claim 1 and 2; It is characterized in that; Said second frock transfers to said surging signal through second port of said second frock port of first frock; And the 3rd port through said second frock transfers to the port to be measured of Devices to test with said surging signal, to test said port to be measured the tolerance of surge comprised:
Second port of said second frock through said second frock be to the surging signal of the port transmission pre-determined number of said first frock, and the 3rd port through said second frock is to the surging signal of the said pre-determined number of port transmission to be measured of said Devices to test;
Break off being connected between the 3rd port of said port to be measured and said second frock; Said port to be measured is connected with the network port of operate as normal; Confirm that said port to be measured satisfies after the preset working state; Raise after the peak value of said surging signal according to predetermined increment; Repeat above-mentioned steps, do not satisfy said preset working state until said port to be measured, to deduct the value that obtains after the said predetermined increment be not the tolerance value of said port to be measured to surge to the peak value of surging signal when then said port to be measured did not satisfy said preset working state.
4. a surge test system is characterized in that, comprising: surging signal generator, coupling network, first frock, second frock, Devices to test, first connecting line, second connecting line and the 3rd connecting line; Said second frock comprises first port, second port and the 3rd port;
Said second frock; Be used for receiving the surging signal that said surging signal generator sends through said coupling network through said first port; Said surging signal is transferred to the port of first frock through said second port; And said surging signal is transferred to the port to be measured of Devices to test through said the 3rd port, to test the tolerance of said port to be measured to surge;
Said first port is connected through said first connecting line with the output port of said coupling network; Said second port is connected through said second connecting line with the port of said first frock, and said the 3rd port is connected through said the 3rd connecting line with said port to be measured; Said first port, said second port link to each other with said the 3rd port in twos;
The port and the said port to be measured of said first port, said second port, said the 3rd port, said first frock are the RJ45 port;
It is reticle plug provided that one end of said first connecting line has the RJ45 type, and it is reticle plug provided that the other end does not have the RJ45 type; 8 lines that said first connecting line does not have in the reticle plug provided end of RJ45 type are divided into first group of line and second group of line, comprise plug pin number mutually different 4 lines respectively in said first group of line and second group of line;
It is reticle plug provided that the two ends of said second connecting line and said the 3rd connecting line all have the RJ45 type;
After said first frock is included in and is higher than predetermined voltage, present the circuit of low impedance characteristic over the ground; Said circuit is made up of the device that has the voltage clamp characteristic.
5. system according to claim 4 is characterized in that, the said device that has the voltage clamp characteristic comprises: gas-discharge tube or voltage dependent resistor (VDR).
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| CN2010101574433A CN101839952B (en) | 2010-04-27 | 2010-04-27 | Method and system for testing surge |
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| CN2010101574433A CN101839952B (en) | 2010-04-27 | 2010-04-27 | Method and system for testing surge |
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| CN101839952B true CN101839952B (en) | 2012-06-27 |
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| CN105301381B (en) * | 2014-07-31 | 2019-03-26 | 展讯通信（上海）有限公司 | Automatic surge test system and test method |
| CN112305399B (en) * | 2019-08-01 | 2023-01-13 | 欣旺达电动汽车电池有限公司 | Surge testing method and device for front-end acquisition chip of BMS (battery management system) of electric automobile |
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| US20080068027A1 (en) * | 2006-09-20 | 2008-03-20 | L-3 Communications Corporation | Power line surge arrestor monitoring system |
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| CN2672666Y (en) * | 2003-11-21 | 2005-01-19 | 华为技术有限公司 | Detecting circuit for anti surge property |
| CN1725719A (en) * | 2005-05-25 | 2006-01-25 | 杭州华为三康技术有限公司 | Switch test device and switch test equipment |
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|---|---|
| CN101839952A (en) | 2010-09-22 |
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