CN104485990A - Multi-path fiber core test device and method - Google Patents
Multi-path fiber core test device and method Download PDFInfo
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- CN104485990A CN104485990A CN201410720243.2A CN201410720243A CN104485990A CN 104485990 A CN104485990 A CN 104485990A CN 201410720243 A CN201410720243 A CN 201410720243A CN 104485990 A CN104485990 A CN 104485990A
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Abstract
The invention provides a multi-path fiber core test device and method. The device comprises a pulse generator, a light source, a light path switch, a directional coupler, a photoelectric detector, a signal processing device, an MCU (micro control unit) chip and a main clock, wherein the light path switch is provided with a plurality of light transmission ports, each light transmission port is connected with a standby optical fiber, the pulse generator generates electric pulse signals and sends the electric pulse signals to the light source, the light source converts the electric pulse signals into light pulse signals, the light pulse signals are sent to the light path switch through the directional coupler, the light path switch is connected with the standby optical fiber of the corresponding light transmission port, the light pulse signals are transmitted to the standby optical fiber, the fed back light signals are received and are transmitted to the photoelectric detector through the directional coupler, the photoelectric detector converts light signals into electric signals and outputs the electric signals to the signal processing device, the signal processing device generates an illumination intensity-distance performance curve according to the electric signals, and transmits the illumination intensity-distance performance curve to the MCU chip, and the MCU chip compares the performance parameters of the standby optical fibers according to the performance curve and generates a test result.
Description
Technical field
The invention relates to the Fibre Optical Communication Technology in electric power system, particularly, is about a kind of multichannel fibre core testing apparatus and method.
Background technology
Optical fiber communication is using optical fiber as transmission channel, utilizes light as the communication mode of information carrier.Because optical fiber has the distinguishing features such as higher reliability, the confidentiality of information, superior mechanical performance and cost are lower, optical fiber becomes the important medium of power system signal transmission.
OTDR (optical time domain reflectometer) is extensively adopted to judge the transmission attenuation of optical fiber and fault location in optical fiber communication.OTDR is by utilizing emitted light pulse in optical fiber, and the information then returned at OTDR port accepts is carried out.When light pulse is transmitted in optical fiber, can due to the character of optical fiber itself, connector, binding site, bend or other similar events and scattering, reflection occur.Wherein the scattering of a part will be got back in OTDR with reflection, and useful information is measured by the detector of OTDR.From transmitting signals to the inverse signal time used, then determining the speed of light in glass substance, just can calculate reflective distance, demonstrate the performance chart of optical fiber simultaneously on the instrument screen.
OTDR have be easy to carry, optical fiber property test accurately and the advantage such as failure diagnosis position is accurate, but also has some defects simultaneously.Tradition OTDR only possesses an optical module, once can only carry out luminescence and performance test to an optical fiber; To be viewed and after preserving this root optical fiber property parameter, test could be continued to next root fibre core.In actual power communication production operation, communication operation maintenance personnel can be tested the ODF of transformer substation communication machine room fibre core for subsequent use, check fibre core quality and test data is recorded, and consuming time the longest for the test of core for subsequent use: it is not convenient that OTDR operation uses, test record operation repeatedly, needs more than two people in conjunction with operation.Two hours are needed when number of, lines is few between website, then consuming time close to one day when circuit is many.The mechanical type fibre core test pattern of " slotting optical fiber → OTDR test → data record → pull out optical fiber → next root optical fiber slotting " seriously reduces the operating efficiency of operation maintenance personnel, and repeatedly continuously plug an optical fiber time, staff easily cause test fibre core misplug and to left and right cause with business optical fiber touch by mistake.Therefore, need to propose a kind of testing scheme for OTDR multichannel fibre core newly, to improve the efficiency of whole test process, and reduce the error that manual operation causes.
Summary of the invention
The main purpose of the embodiment of the present invention is to provide a kind of multichannel fibre core testing apparatus and method, releases manpower, reduces labour intensity, can improve the efficiency of the whole test process to testing fiber, and can reduce the error that manual operation causes.
To achieve these goals, the embodiment of the present invention provides a kind of multichannel fibre core testing apparatus, and described multichannel fibre core testing apparatus comprises: pulse generator, light source, light path switch, directional coupler, photoelectric detector, signal processing apparatus, MCU chip and master clock; Described light path switch is provided with multiple optical communication port, and each optical communication port connects a spare fibre; Wherein, described master clock sends a clock signal to described pulse generator, and sends a frequency signal to described signal processing apparatus; Described MCU chip sends a periodic emission time signal to described pulse generator, and sends a switching over signal to described light path switch; Described pulse generator produces electric impulse signal according to described clock signal, and according to described periodic emission time signal, described electric impulse signal is sent to described light source; Described electric impulse signal is converted to light pulse signal by described light source, and described light pulse signal is sent to described directional coupler; Described directional coupler exports described light pulse signal to described light path switch; Light pulse signal described in described light path switch receives and described switching over signal, the spare fibre of corresponding optical communication port is connected according to described switching over signal, then described light pulse signal sent to the spare fibre of described corresponding optical communication port and receive the light signal of feedback, sending described light signal to described directional coupler; Described directional coupler receives described light signal, and exports described light signal to described photoelectric detector; Described light signal is converted to the signal of telecommunication by described photoelectric detector, and exports the described signal of telecommunication to described signal processing apparatus; Described signal processing apparatus receives described frequency signal and the signal of telecommunication, according to described frequency signal, the described signal of telecommunication is converted to digital signal, generate luminous intensity-distance performance curve according to described digital signal, and described luminous intensity-distance performance curve is transferred to described MCU chip; Described MCU chip is compared according to the performance parameter of described luminous intensity-distance performance curve to the spare fibre of described corresponding optical communication port, generates test result.
In one embodiment, above-mentioned MCU chip is specifically for the measuring distance error and the attenuation value that obtain the spare fibre of described corresponding optical communication port according to described luminous intensity-distance performance curve; Judge the size of described measuring distance error and a standard error value, and judge the size of described attenuation value and a standard attenuation value; When described measuring distance error is greater than described standard error value, and/or when described attenuation value is greater than described standard attenuation value, judge that the spare fibre of described corresponding optical communication port is problem optical fiber; Otherwise, judge that the spare fibre of described corresponding optical communication port is normal optical fiber; Export the judged result of the spare fibre of described corresponding optical communication port as described test result.
In one embodiment, above-mentioned multichannel fibre core testing apparatus also comprises: amplifier, described amplifier is connected between described photoelectric detector and signal processing apparatus, the described signal of telecommunication that photoelectric detector described in described amplifier accepts exports, transfers to described signal processing apparatus after being amplified by the described signal of telecommunication.
In one embodiment, above-mentioned multichannel fibre core testing apparatus also comprises: data output device, and described data output device is connected with described MCU chip, receives and test result described in exporting.
In one embodiment, above-mentioned multichannel fibre core testing apparatus also comprises: display, and described display is connected with described data output device, receives and luminous intensity-distance performance curve described in showing and test result.
The embodiment of the present invention also provides a kind of multichannel fibre core method of testing, be applied to above-mentioned multichannel fibre core testing apparatus, it is characterized in that, described multichannel fibre core method of testing comprises: described pulse generator produces an electric impulse signal, and described electric impulse signal is sent to described light source; Described electric impulse signal is converted to light pulse signal by described light source, and by described directional coupler, described light pulse signal is sent to described light path switch; Described light path switch connects the spare fibre of corresponding optical communication port according to the switching over signal that described MCU chip sends, described light pulse signal transferred to the spare fibre of described corresponding optical communication port and receive the light signal of feedback, then by described directional coupler by described optical signal transmission to described photoelectric detector; Described light signal is converted to the signal of telecommunication by described photoelectric detector, and exports the described signal of telecommunication to described signal processing apparatus; Described signal processing apparatus receives the described signal of telecommunication, generates luminous intensity-distance performance curve, and described luminous intensity-distance performance curve is transferred to described MCU chip according to the described signal of telecommunication; Described MCU chip is compared according to the performance parameter of described luminous intensity-distance performance curve to the spare fibre of described corresponding optical communication port, generates test result.
In one embodiment, above-mentioned MCU chip is compared according to the performance parameter of described luminous intensity-distance performance curve to the spare fibre of described corresponding optical communication port, generate test result, comprising: described MCU chip obtains measuring distance error and the attenuation value of the spare fibre of described corresponding optical communication port according to described luminous intensity-distance performance curve; Judge the size of described measuring distance error and a standard error value, and judge the size of described attenuation value and a standard attenuation value; When described measuring distance error is greater than described standard error value, and/or when described attenuation value is greater than described standard attenuation value, judge that the spare fibre of described corresponding optical communication port is problem optical fiber; Otherwise, judge that the spare fibre of described corresponding optical communication port is normal optical fiber; Export the judged result of the spare fibre of described corresponding optical communication port as described test result.
In one embodiment, above-mentioned light path switch connects the spare fibre of corresponding optical communication port according to the switching over signal that described MCU chip sends, comprise: described light path switch individually connects the spare fibre of corresponding optical communication port described in each, to test each spare fibre respectively according to the time of reception order of multiple described switching over signal.
In one embodiment, above-mentioned pulse generator produces an electric impulse signal, and described electric impulse signal is sent to described light source, comprising: described pulse generator receives the clock signal that described master clock sends, and receive a periodic emission time signal of described MCU chip transmission; Described pulse generator produces described electric impulse signal according to described clock signal, and according to described periodic emission time signal, described electric impulse signal is sent to described light source.
In one embodiment, above-mentioned signal processing apparatus receives the described signal of telecommunication, luminous intensity-distance performance curve is generated according to the described signal of telecommunication, and described luminous intensity-distance performance curve is transferred to described MCU chip, comprising: described signal processing apparatus receives a frequency signal of the described signal of telecommunication and the transmission of described master clock; The described signal of telecommunication is converted to digital signal according to described frequency signal by described signal processing apparatus, generate described luminous intensity-distance performance curve according to described digital signal, and described luminous intensity-distance performance curve is transferred to described MCU chip.
The beneficial effect of the embodiment of the present invention is, pass through the present invention, can in the production work of reality, reduce personnel amount and the instrumentation repeatability of fibre core for subsequent use test needs, also avoid the misplug caused in fibre core swapping process to a certain extent and touch by mistake, reduce labour intensity, significantly improve operating efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the multichannel fibre core testing apparatus 100 according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of the spare fibre according to the embodiment of the present invention;
Fig. 3 A and Fig. 3 B is for carry out test gained performance curve schematic diagram according to the embodiment of the present invention to spare fibre;
Fig. 4 is the flow chart of the multichannel fibre core method of testing according to the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of multichannel fibre core testing apparatus and method.Below in conjunction with accompanying drawing, the present invention is described in detail.
The embodiment of the present invention provides a kind of multichannel fibre core testing apparatus, to carry out performance test to spare fibre.As shown in Figure 1, this multichannel fibre core testing apparatus 100 comprises: pulse generator 1, light source 2, directional coupler 3, light path switch 4, photoelectric detector 5, signal processing apparatus 6, MCU chip 7 and master clock 8.
In the test incipient stage, above-mentioned master clock 8 sends a clock signal to pulse generator 1, and sends a frequency signal to signal processing apparatus 6; Above-mentioned MCU chip 7 sends a periodic emission time signal to pulse generator 1, and sends a switching over signal to light path switch 3.Wherein, this clock signal produces electric impulse signal in order to make pulse generator 1 with certain frequency; Frequency signal, with thinking that signal processing apparatus 6 provides operating frequency, makes the operating frequency of signal processing apparatus 6 keep synchronous with the frequency of the electric impulse signal that pulse generator 1 produces; Periodic emission time signal produces the periodic emission time of electric impulse signal in order to clamp-pulse generator 1; Switching over signal is then in order to control the switching of light path switch 4.
After receiving above-mentioned clock signal and periodic emission time signal, pulse generator 1 produces electric impulse signal according to this clock signal, and according to this periodic emission time signal, the electric impulse signal of generation is sent to light source 2.
The electric impulse signal received is converted to light pulse signal by light source 2, and this light pulse signal is sent to directional coupler 3.This directional coupler 3 exports light pulse signal to light path switch 4.
Light path switch 4 is provided with multiple optical communication port, and the equal correspondence of each optical communication port is connected with a spare fibre to be tested.As shown in Figure 2, shown in Fig. 2 is test 12 spare fibre to this spare fibre, wherein, the 7th and the 8th optical fiber occupied, therefore do not test.It should be noted that, the spare fibre of 12 shown in Fig. 2 is only and illustrates, and is not used to limit the present invention, in practical application, also can test for the many spare fibre such as 24,36 or 48.Correspondingly, the quantity of the optical communication port on light path switch 4 then can be arranged according to the quantity of spare fibre.
Light path switch 4 receives the light pulse signal of directional coupler 3 transmission and the switching over signal of MCU chip 7 transmission.Wherein, this switching over signal includes the information of the optical communication port that the spare fibre that will carry out testing connects.For sake of clarity, hereinafter this optical communication port is called optical communication port a, the spare fibre that connect corresponding to this optical communication port a is called spare fibre Ga.Light path switch 4 connects should the spare fibre Ga of optical communication port a according to the information of the optical communication port a comprised in this switching over signal, then above-mentioned light pulse signal is sent to the spare fibre Ga that connect corresponding to this optical communication port a.Further, this light path switch 4 receives the light signal from this spare fibre Ga feedback, and sends this light signal to above-mentioned directional coupler 3.
In actual applications, light path switch 4 is according to the time of reception order of multiple switching over signal, individually the spare fibre of optical communication port corresponding to each root connects successively, with respectively to each root spare fibre transmission light pulse signal, and obtain the light signal that each root spare fibre feeds back to, to test each root spare fibre.
In another embodiment, light path switch 4 also can according to switching over signal behavior wherein several spare fibre carry out successively selecting and testing, such as, test the 1st, 2,3,5,6,9,10 in 12 spare fibre, then connect the 1st, 2,3,5,6,9,10 spare fibre successively by this selector switch 4, and to above-mentioned spare fibre transmission light pulse signal, and receive corresponding feedback signal, automatically generate corresponding data simultaneously and preserve, the present invention, not as limit, can need to arrange according to the test of reality.
Directional coupler 3 exports this light signal to above-mentioned photoelectric detector 5 after receiving the light signal of light path switch 4 transmission.The light signal received is converted to the signal of telecommunication by photoelectric detector 5, and exports this signal of telecommunication to above-mentioned signal processing apparatus 6.
After signal processing apparatus 6 receives above-mentioned frequency signal and the signal of telecommunication, according to this frequency signal, this signal of telecommunication is converted to digital signal, and generate the luminous intensity-distance performance curve of this spare fibre Ga according to performance parameters such as the luminous intensity about spare fibre Ga comprised in this digital signal and measuring distances, and this luminous intensity-distance performance curve is transferred to above-mentioned MCU chip 7.
The luminous intensity that this MCU chip 7 sends according to the signal processing apparatus 6-performance parameter of distance performance curve to spare fibre Ga is compared, and generates test result.Particularly, MCU chip 7 is according to performance parameters such as the measuring distance error of this luminous intensity-distance performance curve acquisition spare fibre Ga and attenuation values, then judge the size of this measuring distance error and a standard error value, and judge the size of this attenuation value and a standard attenuation value.In practical application, can arrange this standard error value is 2.00 kilometers, arranging this standard attenuation value is 0.30dB/km, but these two numerical value illustrate standard error value in the embodiment of the present invention and standard attenuation value, and and be not used to limit the present invention, can different standard error values and standard attenuation value be set according to different applied environments.
When the judged result of MCU chip 7 is at least one in " measuring distance error is greater than standard error value " and " attenuation value is greater than standard attenuation value ", then judge that this spare fibre Ga is problem optical fiber; Otherwise, then judge that this spare fibre Ga is normal optical fiber.
After the MCU chip 7 couples of spare fibre Ga judge to terminate, export the judged result of this spare fibre Ga as test result.
Known by describing above, by the multichannel fibre core testing apparatus 100 of the embodiment of the present invention, personnel amount and the instrumentation repeatability of fibre core for subsequent use test needs can be reduced, also avoid the misplug caused in fibre core swapping process to a certain extent and touch by mistake, reduce labour intensity, significantly improve operating efficiency.
In one embodiment, as shown in Figure 1, the multichannel fibre core testing apparatus 100 of the embodiment of the present invention also can comprise an amplifier 9, this amplifier 9 is connected between photoelectric detector 5 and signal processing apparatus 6, the signal of telecommunication that amplifier 9 exports for receiving photoelectric detector 5, transfers to signal processing apparatus 6 after being amplified by this signal of telecommunication again.The signal strength signal intensity of the signal of telecommunication exported due to this photoelectric detector 5 is likely fainter, is amplified this signal of telecommunication by amplifier 9, is more convenient for follow-uply processing this signal of telecommunication.
In practical application, the multichannel fibre core testing apparatus 100 of the embodiment of the present invention also can comprise a data output device 10, and this data output device 10 is connected with above-mentioned MCU chip 7, for receive and export MCU chip 7 generate test result.
Further, the multichannel fibre core testing apparatus 100 of the embodiment of the present invention also comprises a display 11, display 11 is connected with above-mentioned data output device 10, for receiving and showing above-mentioned luminous intensity-distance performance curve and test result, make tester can check the state understanding multi-channel optical fibre more intuitively, and make adjustment in time.
Be specifically described below in conjunction with the multichannel fibre core testing apparatus of a test case to the embodiment of the present invention.
As following table one, be the statistical table that the spare fibre of 12 is as shown in Figure 2 tested, wherein, the 7th and the 8th optical fiber occupied, therefore do not test.
Table one
Further, the standard value of carrying out the performance parameter of testing can specifically be selected, as shown in following table two:
Table two
As shown in Table 2, in this test, be selected standard error value be 2.00 kilometers, standard attenuation value is 00.30dB/km, and other test parameter of setting further, as shown in following table three:
Table three
After the optimum configurations to multichannel fibre core testing apparatus, can start to test, gained test result is as shown in following table four:
Table four
As shown in Table 4, the attenuation value of test the 9th spare fibre gained is 0.371dB/km, is greater than above-mentioned standard attenuation value 0.3dB/km; Measuring distance is 77.54 kilometers, and compared to the measuring distance 80 kilometers arranged, its range error is 2.46 kilometers, is greater than above-mentioned standard error value 2 kilometers.Therefore, can obtain test result is: 1st ~ 6,10 ~ 12 spare fibre are normal optical fiber, and the 9th spare fibre is problem optical fiber.
For problem optical fiber, once can test again separately, verify, if test result still has problem, then can confirm that this spare fibre is problem optical fiber.9th spare fibre is carried out to the cleaning of ODF fibre core, wiping outlet fibre core joint, from newly testing, test result is as shown in following table five:
Table five
As shown in Table 5, be 0.352dB/km to the attenuation value of the second test gained of the 9th spare fibre, be greater than above-mentioned standard attenuation value 0.3dB/km; Measuring distance is 77.82 kilometers, and compared to the measuring distance 80 kilometers arranged, its range error is 2.18 kilometers, is greater than above-mentioned standard error value 2 kilometers.Visible, the 9th spare fibre is problem optical fiber.
Further, also by above-mentioned display 11, export above-mentioned test result, as shown in Fig. 3 A and Fig. 3 B.Fig. 3 A is the performance chart carrying out testing gained to the 1st spare fibre, and Fig. 3 B is the performance chart the 9th spare fibre being carried out to second test gained, in this performance chart, abscissa is measuring distance, unit is km, and ordinate is luminous intensity, and unit is dB.
The embodiment of the present invention also provides a kind of multichannel fibre core method of testing, and in actual applications, this multichannel fibre core method of testing can be applicable in above-mentioned multichannel fibre core testing apparatus 100, and as shown in Figure 4, the multichannel fibre core method of testing of the embodiment of the present invention comprises:
Step 101: pulse generator 1 produces an electric impulse signal, and this electric impulse signal is sent to light source 2;
Step 102: this electric impulse signal is converted to light pulse signal by light source 2, and by directional coupler 3, this light pulse signal is sent to light path switch 4;
Step 103: light path switch 4 connects the spare fibre Ga of corresponding optical communication port a according to the switching over signal that MCU chip 7 sends, light pulse signal transferred to this spare fibre Ga and receive the light signal of feedback, then by directional coupler 7 by this optical signal transmission to photoelectric detector 5;
Step 104: this light signal is converted to the signal of telecommunication by photoelectric detector 5, and export the signal of telecommunication to signal processing apparatus 6;
Step 105: signal processing apparatus 6 receives this signal of telecommunication, generates luminous intensity-distance performance curve according to the signal of telecommunication, and this luminous intensity-distance performance curve is transferred to MCU chip 7;
Step 106:MCU chip 7 is compared according to this luminous intensity-performance parameter of distance performance curve to spare fibre Ga, generates test result.
As seen from the above description, the multichannel fibre core method of testing of the embodiment of the present invention, it is the automatic selection by light path switch 4, the spare fibre Ga to be tested that the pulse signal transmission exported by pulse generator 1 connects to optical communication port a correspondence, and receive the light signal of feedback, thus according to this light signal, spare fibre Ga is tested.Therefore, by the present invention, personnel amount and the instrumentation repeatability of fibre core for subsequent use test needs can be reduced, also avoid the misplug caused in fibre core swapping process to a certain extent and touch by mistake, reducing labour intensity, significantly improve operating efficiency.
In the test incipient stage, send a clock signal by above-mentioned master clock 8 to pulse generator 1, and send a frequency signal to signal processing apparatus 6; Above-mentioned MCU chip 7 sends a periodic emission time signal to pulse generator 1, and sends a switching over signal to light path switch 3.
After receiving above-mentioned clock signal and periodic emission time signal, in above-mentioned steps 101, pulse generator 1 produces electric impulse signal according to this clock signal, and according to this periodic emission time signal, the electric impulse signal of generation is sent to light source 2.
Above-mentioned step 102, the electric impulse signal received is converted to light pulse signal by light source 2, and this light pulse signal is sent to directional coupler 3.This directional coupler 3 exports light pulse signal to light path switch 4.
Light path switch 4 is provided with multiple optical communication port, and the equal correspondence of each optical communication port is connected with a spare fibre to be tested.Light path switch 4 receives the light pulse signal of directional coupler 3 transmission and the switching over signal of MCU chip 7 transmission.Wherein, this switching over signal includes the information of the optical communication port a that the spare fibre Ga that will carry out testing connects.In above-mentioned step 103, light path switch 4 connects should the spare fibre Ga of optical communication port a according to the information of the optical communication port a comprised in this switching over signal, then above-mentioned light pulse signal is sent to the spare fibre Ga that connect corresponding to this optical communication port a.Further, this light path switch 4 receives the light signal from this spare fibre Ga feedback, and sends this light signal to above-mentioned directional coupler 3.Directional coupler 3 exports this light signal to above-mentioned photoelectric detector 5 after receiving the light signal of light path switch 4 transmission.
In actual applications, light path switch 4 is according to the time of reception order of multiple switching over signal, individually the spare fibre of optical communication port corresponding to each root connects successively, with respectively to each root spare fibre transmission light pulse signal, and obtain the light signal that each root spare fibre feeds back to, to test each root spare fibre.
In another embodiment, also can according to switching over signal behavior wherein several spare fibre carry out successively selecting and testing, such as, test the 1st, 2,3,5,6,9,10 in 12 spare fibre, then connect the 1st, 2,3,5,6,9,10 spare fibre successively by this selector switch 4, and to above-mentioned spare fibre transmission light pulse signal, and receive corresponding feedback signal, automatically generate corresponding data simultaneously and preserve, the present invention, not as limit, can need to arrange according to the test of reality.
After directional coupler 3 is by light signal output valve photoelectric detector 5, perform above-mentioned steps 104, the light signal received is converted to the signal of telecommunication by photoelectric detector 5, and exports this signal of telecommunication to above-mentioned signal processing apparatus 6.
Above-mentioned step 105, after signal processing apparatus 6 receives above-mentioned frequency signal and the signal of telecommunication, generate the luminous intensity-distance performance curve of this spare fibre Ga according to performance parameters such as the luminous intensity about spare fibre Ga comprised in this digital signal and measuring distances, and this luminous intensity-distance performance curve is transferred to above-mentioned MCU chip 7.Particularly, this signal of telecommunication is converted to digital signal by this frequency signal that signal processing apparatus 6 sends according to master clock 8, to ensure that the process frequency of signal processing apparatus 6 keeps synchronous with the frequency of the electric impulse signal that pulse generator 1 produces.
In above-mentioned step 106, the luminous intensity that this MCU chip 7 sends according to the signal processing apparatus 6-performance parameter of distance performance curve to spare fibre Ga is compared, and generates test result.Particularly, MCU chip 7 is according to performance parameters such as the measuring distance error of this luminous intensity-distance performance curve acquisition spare fibre Ga and attenuation values.Then judge the size of this measuring distance error and a standard error value, and judge the size of this attenuation value and a standard attenuation value.In practical application, can arrange this standard error value is 2.00 kilometers, arranging this standard attenuation value is 0.30dB/km, but these two numerical value illustrate standard error value in the embodiment of the present invention and standard attenuation value, and and be not used to limit the present invention, can different standard error values and standard attenuation value be set according to different applied environments.
When the judged result of MCU chip 7 is at least one in " measuring distance error is greater than standard error value " and " attenuation value is greater than standard attenuation value ", then judge that this spare fibre Ga is problem optical fiber; Otherwise, then judge that this spare fibre Ga is normal optical fiber.
After the MCU chip 7 couples of spare fibre Ga judge to terminate, export the judged result of this spare fibre Ga as test result.
In sum, by the multichannel fibre core method of testing of the embodiment of the present invention, can in the production work of reality, reduce personnel amount and the instrumentation repeatability of fibre core for subsequent use test needs, also avoid the misplug caused in fibre core swapping process to a certain extent and touch by mistake, reduce labour intensity, significantly improve operating efficiency.
One of ordinary skill in the art will appreciate that the hardware that all or part of step realized in above-described embodiment method can carry out instruction relevant by program has come, this program can be stored in a computer read/write memory medium, such as ROM/RAM, magnetic disc, CD etc.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection range be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multichannel fibre core testing apparatus, is characterized in that, described multichannel fibre core testing apparatus comprises: pulse generator, light source, light path switch, directional coupler, photoelectric detector, signal processing apparatus, MCU chip and master clock; Described light path switch is provided with multiple optical communication port, and each optical communication port connects a spare fibre; Wherein,
Described master clock sends a clock signal to described pulse generator, and sends a frequency signal to described signal processing apparatus;
Described MCU chip sends a periodic emission time signal to described pulse generator, and sends a switching over signal to described light path switch;
Described pulse generator produces electric impulse signal according to described clock signal, and according to described periodic emission time signal, described electric impulse signal is sent to described light source;
Described electric impulse signal is converted to light pulse signal by described light source, and described light pulse signal is sent to described directional coupler;
Described directional coupler exports described light pulse signal to described light path switch;
Light pulse signal described in described light path switch receives and described switching over signal, the spare fibre of corresponding optical communication port is connected according to described switching over signal, then described light pulse signal sent to the spare fibre of described corresponding optical communication port and receive the light signal of feedback, sending described light signal to described directional coupler;
Described directional coupler receives described light signal, and exports described light signal to described photoelectric detector;
Described light signal is converted to the signal of telecommunication by described photoelectric detector, and exports the described signal of telecommunication to described signal processing apparatus;
Described signal processing apparatus receives described frequency signal and the signal of telecommunication, according to described frequency signal, the described signal of telecommunication is converted to digital signal, generate luminous intensity-distance performance curve according to described digital signal, and described luminous intensity-distance performance curve is transferred to described MCU chip;
Described MCU chip is compared according to the performance parameter of described luminous intensity-distance performance curve to the spare fibre of described corresponding optical communication port, generates test result.
2. multichannel fibre core testing apparatus according to claim 1, is characterized in that, described MCU chip specifically for:
Measuring distance error and the attenuation value of the spare fibre of described corresponding optical communication port is obtained according to described luminous intensity-distance performance curve;
Judge the size of described measuring distance error and a standard error value, and judge the size of described attenuation value and a standard attenuation value;
When described measuring distance error is greater than described standard error value, and/or when described attenuation value is greater than described standard attenuation value, judge that the spare fibre of described corresponding optical communication port is problem optical fiber; Otherwise, judge that the spare fibre of described corresponding optical communication port is normal optical fiber;
Export the judged result of the spare fibre of described corresponding optical communication port as described test result.
3. multichannel fibre core testing apparatus according to claim 2, it is characterized in that, described multichannel fibre core testing apparatus also comprises: amplifier, described amplifier is connected between described photoelectric detector and signal processing apparatus, the described signal of telecommunication that photoelectric detector described in described amplifier accepts exports, transfers to described signal processing apparatus after being amplified by the described signal of telecommunication.
4. multichannel fibre core testing apparatus according to claim 3, is characterized in that, described multichannel fibre core testing apparatus also comprises: data output device, and described data output device is connected with described MCU chip, receives and test result described in exporting.
5. multichannel fibre core testing apparatus according to claim 4, it is characterized in that, described multichannel fibre core testing apparatus also comprises: display, and described display is connected with described data output device, receives and luminous intensity-distance performance curve described in showing and test result.
6. a multichannel fibre core method of testing, is applied to multichannel fibre core testing apparatus as claimed in claim 1, it is characterized in that, described multichannel fibre core method of testing comprises:
Described pulse generator produces an electric impulse signal, and described electric impulse signal is sent to described light source;
Described electric impulse signal is converted to light pulse signal by described light source, and by described directional coupler, described light pulse signal is sent to described light path switch;
Described light path switch connects the spare fibre of corresponding optical communication port according to the switching over signal that described MCU chip sends, described light pulse signal transferred to the spare fibre of described corresponding optical communication port and receive the light signal of feedback, then by described directional coupler by described optical signal transmission to described photoelectric detector;
Described light signal is converted to the signal of telecommunication by described photoelectric detector, and exports the described signal of telecommunication to described signal processing apparatus;
Described signal processing apparatus receives the described signal of telecommunication, generates luminous intensity-distance performance curve, and described luminous intensity-distance performance curve is transferred to described MCU chip according to the described signal of telecommunication;
Described MCU chip is compared according to the performance parameter of described luminous intensity-distance performance curve to the spare fibre of described corresponding optical communication port, generates test result.
7. multichannel fibre core method of testing according to claim 6, is characterized in that, described MCU chip is compared according to the performance parameter of described luminous intensity-distance performance curve to the spare fibre of described corresponding optical communication port, generates test result, comprising:
Described MCU chip obtains measuring distance error and the attenuation value of the spare fibre of described corresponding optical communication port according to described luminous intensity-distance performance curve;
Judge the size of described measuring distance error and a standard error value, and judge the size of described attenuation value and a standard attenuation value;
When described measuring distance error is greater than described standard error value, and/or when described attenuation value is greater than described standard attenuation value, judge that the spare fibre of described corresponding optical communication port is problem optical fiber; Otherwise, judge that the spare fibre of described corresponding optical communication port is normal optical fiber;
Export the judged result of the spare fibre of described corresponding optical communication port as described test result.
8. multichannel fibre core method of testing according to claim 7, is characterized in that, described light path switch connects the spare fibre of corresponding optical communication port according to the switching over signal that described MCU chip sends, and comprising:
Described light path switch individually connects the spare fibre of corresponding optical communication port described in each, to test each spare fibre respectively according to the time of reception order of multiple described switching over signal.
9. multichannel fibre core method of testing according to claim 8, it is characterized in that, described pulse generator produces an electric impulse signal, and described electric impulse signal is sent to described light source, comprising:
Described pulse generator receives the clock signal that described master clock sends, and receives a periodic emission time signal of described MCU chip transmission;
Described pulse generator produces described electric impulse signal according to described clock signal, and according to described periodic emission time signal, described electric impulse signal is sent to described light source.
10. multichannel fibre core method of testing according to claim 9, it is characterized in that, described signal processing apparatus receives the described signal of telecommunication, luminous intensity-distance performance curve is generated according to the described signal of telecommunication, and described luminous intensity-distance performance curve is transferred to described MCU chip, comprising:
Described signal processing apparatus receives a frequency signal of the described signal of telecommunication and the transmission of described master clock;
The described signal of telecommunication is converted to digital signal according to described frequency signal by described signal processing apparatus, generate described luminous intensity-distance performance curve according to described digital signal, and described luminous intensity-distance performance curve is transferred to described MCU chip.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079909A (en) * | 2016-07-06 | 2016-11-09 | 无锡宏纳科技有限公司 | Can the optical fiber inner cable marking machine of simultaneously labelling multifiber |
| CN108075828A (en) * | 2017-12-16 | 2018-05-25 | 国网湖北省电力有限公司信息通信公司 | A kind of OTDR devices based on multi-channel optical fibre optical monitoring signal |
| CN108332944A (en) * | 2018-04-18 | 2018-07-27 | 云南电网有限责任公司怒江供电局 | A kind of optical fiber alignment device |
| CN110138445A (en) * | 2019-05-24 | 2019-08-16 | 广东电网有限责任公司 | The regular inspection test method of vacant optical fiber |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199191A (en) * | 1992-01-20 | 1993-08-06 | Nippon Telegr & Teleph Corp <Ntt> | Method and device for fault bracketing |
| US6512610B1 (en) * | 1998-03-11 | 2003-01-28 | Ando Electric Co., Ltd. | Device and method for testing of multi-branch optical network |
| CN101252393A (en) * | 2008-04-01 | 2008-08-27 | 武汉光迅科技股份有限公司 | Optic cable automatic monitoring system with optical fiber automatic switch unit |
| CN101360984A (en) * | 2006-02-03 | 2009-02-04 | 株式会社藤仓 | Light beam path monitoring device and light beam path monitoring method |
| CN101442691A (en) * | 2008-12-22 | 2009-05-27 | 武汉光迅科技股份有限公司 | Optical cable monitoring system based on passive optical network system |
| CN102187603A (en) * | 2008-10-17 | 2011-09-14 | 爱斯福公司 | Method and apparatus for deriving parameters of optical paths in optical networks using a two-wavelength otdr and a wavelength-dependent reflective element |
| CN102342045A (en) * | 2009-03-02 | 2012-02-01 | 住友电气工业株式会社 | Optical transmission monitoring apparatus |
| CN102394695A (en) * | 2011-11-09 | 2012-03-28 | 广东长实通信股份有限公司 | Integrated test system of optical line |
| CN102946270A (en) * | 2011-09-27 | 2013-02-27 | 中华电信股份有限公司 | Optical frequency domain reflection type optical fiber network testing method |
| CN203261335U (en) * | 2013-04-28 | 2013-10-30 | 国家电网公司 | Optical cable on-line monitoring device |
| CN103931119A (en) * | 2011-10-11 | 2014-07-16 | Ls电线有限公司 | Optical line monitoring system and method |
| CN204465539U (en) * | 2014-12-02 | 2015-07-08 | 国家电网公司 | A kind of multichannel fibre core testing apparatus |
-
2014
- 2014-12-02 CN CN201410720243.2A patent/CN104485990A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199191A (en) * | 1992-01-20 | 1993-08-06 | Nippon Telegr & Teleph Corp <Ntt> | Method and device for fault bracketing |
| US6512610B1 (en) * | 1998-03-11 | 2003-01-28 | Ando Electric Co., Ltd. | Device and method for testing of multi-branch optical network |
| CN101360984A (en) * | 2006-02-03 | 2009-02-04 | 株式会社藤仓 | Light beam path monitoring device and light beam path monitoring method |
| CN101252393A (en) * | 2008-04-01 | 2008-08-27 | 武汉光迅科技股份有限公司 | Optic cable automatic monitoring system with optical fiber automatic switch unit |
| CN102187603A (en) * | 2008-10-17 | 2011-09-14 | 爱斯福公司 | Method and apparatus for deriving parameters of optical paths in optical networks using a two-wavelength otdr and a wavelength-dependent reflective element |
| CN101442691A (en) * | 2008-12-22 | 2009-05-27 | 武汉光迅科技股份有限公司 | Optical cable monitoring system based on passive optical network system |
| CN102342045A (en) * | 2009-03-02 | 2012-02-01 | 住友电气工业株式会社 | Optical transmission monitoring apparatus |
| CN102946270A (en) * | 2011-09-27 | 2013-02-27 | 中华电信股份有限公司 | Optical frequency domain reflection type optical fiber network testing method |
| CN103931119A (en) * | 2011-10-11 | 2014-07-16 | Ls电线有限公司 | Optical line monitoring system and method |
| CN102394695A (en) * | 2011-11-09 | 2012-03-28 | 广东长实通信股份有限公司 | Integrated test system of optical line |
| CN203261335U (en) * | 2013-04-28 | 2013-10-30 | 国家电网公司 | Optical cable on-line monitoring device |
| CN204465539U (en) * | 2014-12-02 | 2015-07-08 | 国家电网公司 | A kind of multichannel fibre core testing apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079909A (en) * | 2016-07-06 | 2016-11-09 | 无锡宏纳科技有限公司 | Can the optical fiber inner cable marking machine of simultaneously labelling multifiber |
| CN108075828A (en) * | 2017-12-16 | 2018-05-25 | 国网湖北省电力有限公司信息通信公司 | A kind of OTDR devices based on multi-channel optical fibre optical monitoring signal |
| CN108332944A (en) * | 2018-04-18 | 2018-07-27 | 云南电网有限责任公司怒江供电局 | A kind of optical fiber alignment device |
| CN110138445A (en) * | 2019-05-24 | 2019-08-16 | 广东电网有限责任公司 | The regular inspection test method of vacant optical fiber |
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