CN105547644A - Optical cable testing system and testing method based on optical time domain reflectometer - Google Patents
Optical cable testing system and testing method based on optical time domain reflectometer Download PDFInfo
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- CN105547644A CN105547644A CN201510928883.7A CN201510928883A CN105547644A CN 105547644 A CN105547644 A CN 105547644A CN 201510928883 A CN201510928883 A CN 201510928883A CN 105547644 A CN105547644 A CN 105547644A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
Abstract
The present invention discloses an optical cable testing system based on an optical time domain reflectometer. The system comprises an order index data sheet for maintaining the qualified attenuation range of each type of optical fibers at each wavelength in each order, a product structure data sheet for maintaining the composition of a product and the production attribute information of each attribute, and a testing parameter data sheet for maintaining various testing parameters needed in an optical time domain reflectometer test. An optical time domain reflectometer testing system obtains the optical fiber type corresponding to an order number from the order index data sheet, obtains the testing parameter corresponding to the optical fiber type from the testing parameter data sheet, sets the testing environment of the optical time domain reflectometer according to the testing parameter, tests a product, and judges whether a testing result satisfies the qualified attenuation range specified in the order index data table. The testing result is stored in a test result data table. According to the optical cable testing system and the testing method, the product can be automatically tested, and the testing efficiency and testing accuracy are improved.
Description
Technical field
The invention belongs to fiber optic testing technical field, more specifically, relate to a kind of fiber optic testing system based on optical time domain reflectometer and method of testing.
Background technology
Increasingly competitive along with fiber optic cable manufacture industry, the quality of fiber optic cable manufacture cost and cable manufactures quality becomes the outstanding problem of enterprise development, one of the key index as optical cable quality: the detection and control of optical fiber attenuation and the efficiency of test are the bottlenecks of fiber optic cable manufacture enterprise always.
Major part optical fiber cable manufacturing enterprise in production link to the attenuation test of optical fiber, all adopt optical time domain reflectometer (OpticalTimeDomainReflectometer, OTDR) testing apparatus, manual adjustment is carried out to the different wave length of every root optical fiber, after coupling is good, manual intervention is tested, then logging test results, artificially judges that whether test result is correct.This traditional method of testing, there is at one the medium-and-large-sized optical fiber production enterprise of the above output of 500-1200 ten thousand core kilometer, not only will be equipped with a large amount of testers spends plenty of time coupling to intervene, and can substandard product be caused to flow into next procedure due to the misregistration, test errors, misjudgment etc. in test, even come into the market, cause the generation of quality accident and the economic compensation of great number.Therefore this traditional method of testing is not only easily made mistakes, and inefficiency.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of fiber optic testing system based on optical time domain reflectometer and method of testing thereof, test for the automatic cable manufactures to producing, and judge whether product meets order requirements according to test result, thus improve testing efficiency and test accuracy rate.
To achieve these goals, the invention provides a kind of fiber optic testing system based on optical time domain reflectometer, comprise order achievement data table, testing parameter data table, product structure tables of data, test result data table and optical time domain reflectometer test macro, wherein:
Described order achievement data table is in order to safeguard that in each order, often kind of model optical fiber, in the qualified attenuation range of each wavelength, at least comprises O/No., product type specification, product fiber type used, core number, length, optical wavelength and qualified attenuation range in order achievement data table;
Described product structure tables of data, in order to safeguard the product attribute information for the composition and each attribute that describe product, comprises O/No., product type specification, core number, segment length, reel number, lettering number, structure, chromatogram and production code member;
The various test parameters needed when described testing parameter data table is in order to safeguard that optical time domain reflectometer is tested, comprise product fiber type to be measured, wavelength, pulsewidth, sample mode, averaging time, group index and measuring distance;
Described optical time domain reflectometer test macro is used for according to the O/No. associated with production code member in the said goods structured data table, the product fiber type used corresponding to described O/No. is obtained from described order achievement data table, obtain from described testing parameter data table and the test parameter corresponding to described fiber type, the test environment of optical time domain reflectometer is set according to described test parameter, to make described optical time domain reflectometer, the product corresponding to O/No. described in described product structure tables of data is tested, judge whether test result meets the qualified attenuation range specified in described order achievement data table, and test result is saved in described test result data table,
Described test result data table is used for the test result of record product, comprise product structure information and test result, this information at least comprises and production code member, O/No. product type specification, fiber type, core number, length, core number, segment length, reel number, lettering number, structure, chromatogram, optical wavelength and decay.
In one embodiment of the present of invention, described optical time domain reflectometer test macro comprises product structure data read module, order achievement data read module, testing parameter data read module, optical time domain reflectometer arrange module, test result judge module and test result data and preserve module, wherein:
Described product structure data read module, for reading the product structure information of product to be measured from described product structure tables of data, described product structure information at least comprises O/No.;
Described order achievement data read module, for the O/No. of the product according to described product structure data read module acquisition, obtains the product fiber type used corresponding to described O/No. from described order achievement data table;
Described testing parameter data read module, for the product fiber type used obtained according to described order achievement data read module, obtains and the test parameter corresponding to described fiber type from described testing parameter data table;
Described optical time domain reflectometer arranges module, test parameter for obtaining according to described testing parameter data read module arranges the test environment of optical time domain reflectometer, tests the product corresponding to O/No. described in described product structure tables of data to make described optical time domain reflectometer;
Described test result judge module, for judging whether described optical time domain reflectometer meets the qualified attenuation range specified in described order achievement data table to the test result of described product;
Described test result data preserves module, for described test result being saved in described test result data table.
In one embodiment of the present of invention, described optical time domain reflectometer test macro also comprises the defective reminding module of product, and during for not meeting the qualified attenuation range specified in described order achievement data table in the test result of described product, prompting product is defective.
In one embodiment of the present of invention, described fiber optic testing system also comprises order achievement data table maintenance module, for safeguarding described order achievement data table according to the order requirements of client.
In one embodiment of the present of invention, described fiber optic testing system also comprises product structure tables of data maintenance module, for safeguarding described product structure tables of data according to the product information produced.
According to another aspect of the present invention, additionally provide a kind of method of testing based on the above-mentioned fiber optic testing system based on optical time domain reflectometer, comprising:
(1) from product structure tables of data, read product information to be tested according to production code member, described product information at least comprises the O/No. associated with described production code member;
(2) from described order achievement data table, obtain the product fiber type used corresponding to described O/No., and the qualified attenuation range to described product requirement;
(3) obtain from described testing parameter data table and the test parameter corresponding to described fiber type;
(4) test environment of optical time domain reflectometer is set according to described test parameter, to make described optical time domain reflectometer, the product corresponding to production code member described in described product structure tables of data is tested;
(5) judge whether test result meets the qualified attenuation range specified in described order achievement data table, and test result is saved in described test result data table.
In one embodiment of the present of invention, described method also comprises: when the test result of described product does not meet the qualified attenuation range specified in described order achievement data table, and prompting product is defective.
In one embodiment of the present of invention, described method also comprises, and safeguards described order achievement data table according to the order requirements of client.
In one embodiment of the present of invention, described method also comprises, and safeguards described product structure tables of data according to the product information produced.
Beneficial effect of the present invention is: to store in order often kind of model optical fiber respectively at the qualified attenuation range of each wavelength, product information to be tested and various test parameter by order achievement data table, testing parameter data table and product structure tables of data, according to above-mentioned data separate optical time domain reflectometer, cable manufactures is tested, and test result and order requirements are compared, judge whether to meet order requirements.Test module can be called automatically test by sample unit time peak value automatic decision coupling condition by the inventive method, automatic Wavelength-converting, automatic collecting test value, automatic decision test result carries out fool proof process, automatic preservation test result, the method of traditional manual intervention test process is become full-automatic testing, greatly improves testing efficiency; Judged by test value is real-time and order requirements index, achieve the strict control of product decay quality, stop unacceptable product and flow out.
Accompanying drawing explanation
Fig. 1 is the structural representation of each tables of data in the fiber optic testing system that the present invention is based on optical time domain reflectometer;
Fig. 2 is the fiber optic testing method flow diagram that the present invention is based on optical time domain reflectometer.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
The invention provides a kind of fiber optic testing system based on optical time domain reflectometer, this system can communicate with PK8000 (a kind of OTDR) or the OTDR of other types, described fiber optic testing system comprises order achievement data table, testing parameter data table, product structure tables of data, test result data table and optical time domain reflectometer test macro, the data structure of each tables of data and between relation as shown in Figure 1.
Described order achievement data table is in order to safeguard the indication information of each cable manufactures in each order, to comprise in each order the qualified attenuation range of often kind of model optical fiber at each wavelength, this information at least comprises O/No., product type specification (distinguishing a kind of describing mode of different cable manufactures according to fiber optic cable communications industry standard), product fiber type used (the variety classes optical fiber title according to International Telecommunications Union (ITU) (ITU) classifies), core number, length, optical wavelength and qualified attenuation range etc.
The various parameter informations needed when described testing parameter data table is in order to safeguard that OTDR testing tool is tested, comprise product fiber type to be measured, wavelength (referring to the wavelength of the laser that OTDR laser instrument is launched), pulsewidth, sample mode, (test duration averaging time, time longer test result analysis more accurate), group index (is the refractive index of testing fiber reality, this numerical value is provided by the manufacturer of testing fiber), (sampling initial sum stops choosing of distance to measuring distance, choose suitable measuring distance during measurement can generate than more comprehensive trajectory diagram) etc.
What comprise in described product structure tables of data is product attribute information, be used for describing the composition of product and each attribute, comprise O/No., product type specification, core number, segment length, reel number, lettering number, structure (optical cable component units), the chromatogram color disposal order of unit (in the optical cable) and production code member etc.
Described optical time domain reflectometer test macro is used for the O/No. according to the production code member association in the said goods structured data table, the product fiber type used corresponding to described O/No. is obtained from described order achievement data table, obtain from described testing parameter data table and the test parameter corresponding to described fiber type, the test environment of optical time domain reflectometer is set according to described test parameter, to make described optical time domain reflectometer, the product corresponding to production code member described in described product structure tables of data is tested, judge whether test result meets the qualified attenuation range specified in described order achievement data table, and test result is saved in described test result data table,
Particularly, described OTDR test macro is used to the instrument of test optical fibre cables, computing machine and software systems, comprises optical time domain reflectometer OTDR, the capture card board of communication acquisition testing tool data (between computing machine and the testing tool), computing machine and software system.
Described test result data table is used to record detecting information, comprise product structure information and test result, this information at least comprises production code member, O/No., product type specification, fiber type, core number, length, core number, segment length, reel number, lettering number, structure, chromatogram, optical wavelength, decay etc.
Particularly, described optical time domain reflectometer test macro comprises product structure data read module, order achievement data read module, testing parameter data read module, optical time domain reflectometer arrange module, test result judge module and test result data and preserve module, wherein:
Described product structure data read module, for reading the product structure information of product to be measured from described product structure tables of data, described product structure information at least comprises O/No.;
Described order achievement data read module, for the O/No. of the product according to described product structure data read module acquisition, obtains the product fiber type used corresponding to described O/No. from described order achievement data table;
Described testing parameter data read module, for the product fiber type used obtained according to described order achievement data read module, obtains and the test parameter corresponding to described fiber type from described testing parameter data table;
Described optical time domain reflectometer arranges module, test parameter for obtaining according to described testing parameter data read module arranges the test environment of optical time domain reflectometer, tests the product corresponding to O/No. described in described product structure tables of data to make described optical time domain reflectometer;
Described test result judge module, for judging whether described optical time domain reflectometer meets the qualified attenuation range specified in described order achievement data table to the test result of described product;
Described test result data preserves module, for described test result being saved in described test result data table.
Further, described optical time domain reflectometer test macro also comprises the defective reminding module of product, and during for not meeting the qualified attenuation range specified in described order achievement data table in the test result of described product, prompting product is defective.
Further, described fiber optic testing system also comprises order achievement data table maintenance module, for safeguarding described order achievement data table according to the order requirements of client.
Further, described fiber optic testing system also comprises order achievement data table maintenance module, for safeguarding described order achievement data table according to the order requirements of client.
The method of testing utilizing said system is described in the present invention below in conjunction with Fig. 2, comprises the steps:
(1) from product structure tables of data, read product information to be tested according to production code member, described product information at least comprises the O/No. associated with described production code member of product;
(2) from described order achievement data table, obtain the product fiber type used corresponding to described O/No., and the qualified attenuation range to described product requirement;
(3) obtain from described testing parameter data table and the test parameter corresponding to described fiber type;
(4) test environment of optical time domain reflectometer is set according to described test parameter, to make described optical time domain reflectometer, the product corresponding to production code member described in described product structure tables of data is tested;
(5) judge whether test result meets the qualified attenuation range specified in described order achievement data table, and test result is saved in described test result data table.
Further, described method also comprises, and when the test result of described product does not meet the qualified attenuation range specified in described order achievement data table, prompting product is defective.
Further, described method also comprises, and safeguards described order achievement data table according to the order requirements of client.
Further, described method also comprises, and safeguards described product structure tables of data according to the product information produced.
The fiber optic testing method that the present invention is based on optical time domain reflectometer is described below in conjunction with a specific embodiment, specifically comprises:
Step 1, production out after, in product structure tables of data, carry out typing and the maintenance of product information; Described product information comprises O/No., product type specification, core number, segment length, reel number, lettering number, structure, chromatogram and production code member;
Step 2, when client places an order, carry out typing and the maintenance of order indication information at order achievement data table; Described order indication information at least comprises O/No., product type specification, product fiber type used, core number, length, optical wavelength and qualified attenuation range;
Step 3, carry out the maintenance of test parameter at testing parameter data table, described test parameter comprises product fiber type to be measured, wavelength, pulsewidth, sample mode, averaging time, group index and measuring distance;
Step 4, when needs are tested product, input the production code member of product to be tested;
Step 5, to close according to described production code member read product information to be tested from product structure tables of data, comprise O/No., wavelength etc. that fiber type, length, chromatogram, core number, needs are tested;
Step 6, match orders index, obtain the product fiber type used corresponding to described O/No. according to described O/No. from described order achievement data table, and the qualified attenuation range to described product requirement;
Step 7, to obtain from described testing parameter data table and the test parameter corresponding to described fiber type; The test environment of optical time domain reflectometer is set according to described test parameter, to make described optical time domain reflectometer, the product corresponding to O/No. described in described product structure tables of data is tested; Test parameter comprises the test parameters such as fiber type, wavelength, pulsewidth, sample mode, averaging time, group index, range;
The test mode of step 8, automatic switchover optical time domain reflectometer is FREERUN, coupled fiber;
Step 9, automatically sampling coupling peak value, when being coupled peak change in one second 0.5% time, automatically opening the OTDR photoswitch of first wavelength, calling the test module test of optical time domain reflectometer, and obtain test value according to wavelength to be measured;
Step 10, according to averaging time, determine that whether this wavelength is on average complete, get test value;
Step 11, judge test value whether in qualified attenuation range, being saved in test result data table in this way, as exceeded standard, then pointing out product defective, so that manpower intervention process.
Step 12, automatic capture system, to free state, judge whether wavelength is completed, time delay 20 milliseconds, automatic switchover wavelength, and the next wavelength that circulates repeats the 10th, 11,12 steps, until an optical fiber all wavelengths is completed automatically, and rolling counters forward.
Step 13, judge that whether counter consistent with core number, inconsistent prompting the need of next root of test, as needs are coupled next root, automatic cycle 8,9,10,11,12,13; As unanimously, point out this product all core numbers all wavelengths to be completed, be automatically submitted to test result data table and preserve;
Step 14, end.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. based on a fiber optic testing system for optical time domain reflectometer, it is characterized in that, comprise order achievement data table, testing parameter data table, product structure tables of data, test result data table and optical time domain reflectometer test macro, wherein:
Described order achievement data table is in order to safeguard that in each order, often kind of model optical fiber, in the qualified attenuation range of each wavelength, at least comprises O/No., product type specification, product fiber type used, core number, length, optical wavelength and qualified attenuation range in order achievement data table;
Described product structure tables of data, in order to safeguard the product attribute information for the composition and each attribute that describe product, comprises O/No., product type specification, core number, segment length, reel number, lettering number, structure, chromatogram and production code member;
The various test parameters needed when described testing parameter data table is in order to safeguard that optical time domain reflectometer is tested, comprise product fiber type to be measured, wavelength, pulsewidth, sample mode, averaging time, group index and measuring distance;
Described optical time domain reflectometer test macro is used for the O/No. according to the production code member association in the said goods structured data table, the product fiber type used corresponding to described O/No. is obtained from described order achievement data table, obtain from described testing parameter data table and the test parameter corresponding to described fiber type, the test environment of optical time domain reflectometer is set according to described test parameter, to make described optical time domain reflectometer, the product corresponding to production code member described in described product structure tables of data is tested, judge whether test result meets the qualified attenuation range specified in described order achievement data table, and test result is saved in described test result data table,
Described test result data table is used for the test result of record product, comprise product structure information and test result, this information at least comprises production code member, O/No., product type specification, fiber type, core number, length, core number, segment length, reel number, lettering number, structure, chromatogram, optical wavelength and decay.
2. as claimed in claim 1 based on the fiber optic testing system of optical time domain reflectometer, it is characterized in that, described optical time domain reflectometer test macro comprises product structure data read module, order achievement data read module, testing parameter data read module, optical time domain reflectometer arrange module, test result judge module and test result data and preserve module, wherein:
Described product structure data read module, for reading the product structure information of product to be measured from described product structure tables of data, described product structure information at least comprises O/No.;
Described order achievement data read module, for the O/No. of the product according to described product structure data read module acquisition, obtains the product fiber type used corresponding to described O/No. from described order achievement data table;
Described testing parameter data read module, for the product fiber type used obtained according to described order achievement data read module, obtains and the test parameter corresponding to described fiber type from described testing parameter data table;
Described optical time domain reflectometer arranges module, test parameter for obtaining according to described testing parameter data read module arranges the test environment of optical time domain reflectometer, tests the product corresponding to O/No. described in described product structure tables of data to make described optical time domain reflectometer;
Described test result judge module, for judging whether described optical time domain reflectometer meets the qualified attenuation range specified in described order achievement data table to the test result of described product;
Described test result data preserves module, for described test result being saved in described test result data table.
3. as claimed in claim 2 based on the fiber optic testing system of optical time domain reflectometer, it is characterized in that, described optical time domain reflectometer test macro also comprises the defective reminding module of product, during for not meeting the qualified attenuation range specified in described order achievement data table in the test result of described product, prompting product is defective.
4. the fiber optic testing system based on optical time domain reflectometer as described in any one of claims 1 to 3, it is characterized in that, described fiber optic testing system also comprises order achievement data table maintenance module, for safeguarding described order achievement data table according to the order requirements of client.
5. the fiber optic testing system based on optical time domain reflectometer as described in any one of claims 1 to 3, it is characterized in that, described fiber optic testing system also comprises product structure tables of data maintenance module, for safeguarding described product structure tables of data according to the product information produced.
6. based on described in any one of claim 1 to 5 based on a method of testing for the fiber optic testing system of optical time domain reflectometer, it is characterized in that, described method comprises:
(1) from product structure tables of data, read product information to be tested according to production code member, described product information at least comprises the O/No. associated with described production code member;
(2) from described order achievement data table, obtain the product fiber type used corresponding to described O/No., and the qualified attenuation range to described product requirement;
(3) obtain from described testing parameter data table and the test parameter corresponding to described fiber type;
(4) test environment of optical time domain reflectometer is set according to described test parameter, to make described optical time domain reflectometer, the product corresponding to production code member described in described product structure tables of data is tested;
(5) judge whether test result meets the qualified attenuation range specified in described order achievement data table, and test result is saved in described test result data table.
7., as claimed in claim 6 based on the fiber optic testing method of optical time domain reflectometer, it is characterized in that, described method also comprises:
When the test result of described product does not meet the qualified attenuation range specified in described order achievement data table, prompting product is defective.
8. the fiber optic testing method based on optical time domain reflectometer as claimed in claims 6 or 7, it is characterized in that, described method also comprises, and safeguards described order achievement data table according to the order requirements of client.
9. the fiber optic testing method based on optical time domain reflectometer as claimed in claims 6 or 7, it is characterized in that, described method also comprises, and safeguards described product structure tables of data according to the product information produced.
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| CN108168843A (en) * | 2017-12-22 | 2018-06-15 | 长飞光纤光缆股份有限公司 | A kind of device and method for quickly measuring fiber link attenuation characteristic under different transmission wavelengths |
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