CN110174241B - Optical cable quality detection and analysis method - Google Patents
Optical cable quality detection and analysis method Download PDFInfo
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- CN110174241B CN110174241B CN201910156103.XA CN201910156103A CN110174241B CN 110174241 B CN110174241 B CN 110174241B CN 201910156103 A CN201910156103 A CN 201910156103A CN 110174241 B CN110174241 B CN 110174241B
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Abstract
The invention discloses an optical cable quality detection and analysis method, which comprises the following steps: 1. the instrument is connected with the fiber core in the optical cable to collect basic data; s2, the data processor processes the received data, and counts the number of high-quality fiber cores, the number of qualified fiber cores, the number of available fiber cores, the number of unavailable fiber cores and the number of broken fibers; (2) judging and counting the number of qualified attenuation points, the number of small attenuation points, the number of middle attenuation points and the number of large attenuation points of a single optical fiber; and S3, diagnosing the health degree of the optical cable, wherein the health value of the optical cable = the fiber core qualification rate 100- (the fiber breakage number + the port damaged fiber core number) 2-the large attenuation point number 1- (the middle attenuation point number + the untested uploading fiber core number) 0.5. The invention sets effective quality control means and evaluation system of the optical cable, improves the quality of the optical cable by applying internet-based acquisition and big data analysis means, has strong effect on improving the service operation quality and the company value, and also generates obvious economic benefit and social benefit.
Description
Technical Field
The invention relates to an optical cable quality detection and analysis method, and belongs to the field of communication.
Background
The communication optical cable has a wide application range in the process of building and operating and maintaining each basic network service, and the quality of the communication optical cable directly influences the safety and reliability of a communication network. Aiming at the conditions that the communication optical cable products are not uniform in quality, the network construction and maintenance quality cannot be effectively guaranteed, and a series of factors that the optical cable quality is changed along with the continuous accumulation of the optical cable service duration and the like, the improvement of the communication optical cable quality control and test is a necessary work. At present, the quality of the optical cable is detected manually on the basis of testing each fiber core, and then the test results are compared manually, so that the mode has low working efficiency and strong dependence on the experience of personnel, and the judgment difference of the quality of the optical cable is large.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an optical cable quality detection and analysis method with accurate health degree judgment.
In order to achieve the above object, the present invention adopts the following technical solutions: an optical cable quality detection and analysis method is characterized by comprising the following steps:
s1, connecting an instrument and a meter with the fiber core in the optical cable, collecting the total core number of the optical cable, the number of the fiber cores used, the number of the damaged fiber cores at the port and the number of the fiber cores not tested, testing the data of the idle fiber core, and simultaneously transmitting the collected data to a data processor;
s2, the data processor processes the received data:
(1) judging the quality of a single fiber core according to the average attenuation system, and counting the number of high-quality fiber cores, the number of qualified fiber cores, the number of available fiber cores and the number of unavailable fiber cores; counting the number of broken fibers according to the chain length and whether the fiber core is damaged by the port;
(2) judging qualified attenuation points, small attenuation points, middle attenuation points and large attenuation points of a single optical fiber according to the range of the event point insertion loss, and counting the corresponding qualified attenuation point number, small attenuation point number, middle attenuation point number and large attenuation point number;
s3, diagnosing the health degree of the optical cable, wherein the health value of the optical cable = the fiber core qualified rate 100- (the fiber breaking quantity + the port damaged fiber core quantity) 2-the large attenuation point quantity 1- (the middle attenuation point quantity + the untested uploading fiber core quantity) 0.5,
wherein, the fiber core qualification rate = (the number of fiber cores used + the number of high-quality fiber cores + the number of qualified fiber cores)/(the total number of optical cable cores-the number of untested uploading fiber cores);
fiber core availability rate = (number of used fiber cores + number of good quality fiber cores + number of qualified fiber cores + number of available fiber cores)/(total number of optical cable cores-number of untested uploading fiber cores).
The technical solution of the present invention is further defined in that, in step S2, after the data processor receives the data of the instrument test, the data processor performs deduplication processing on the received data, and the deduplication method is as follows:
the first step is as follows: comparing the test fiber core data of the same optical cable at the same moment, judging whether the number of the event points is repeated, judging that the fiber core data with the non-repeated number of the event points is not repeated, and otherwise, entering a second step;
the second step is that: judging whether the positions of the event points are the same in the test fiber core data, if the positions are different, judging that the data are not repeated, and if not, entering a third step;
the third step: and judging whether the insertion loss of the event points is consistent in the test fiber core data, if not, judging that the data is not repeated, otherwise, judging that the data is repeated.
Further, the method for determining the quality of the single fiber core according to the average attenuation system in step S2 includes:
if the average attenuation coefficient is less than or equal to 0.25dB/KM, the fiber core is a high-quality fiber core; if 0.25dB/KM < the average attenuation coefficient is less than or equal to 0.35dB/KM, the fiber core is a qualified fiber core; if 0.35dB/KM < the average attenuation coefficient is less than or equal to 0.5dB/KM, the fiber core is a usable fiber core; if the average attenuation coefficient is > 0.5dB/KM, the core is a non-usable core.
Further, the method for determining fiber breakage in step S2 is as follows: if the chain length of the fiber core is less than 98% of the chain length of the longest fiber core in the measured optical cable, the fiber core is broken; if the core is a port-damaged core, the core is a broken fiber.
Further, the method for determining the consumption point level according to the range of the event point insertion loss in step S2 includes: qualified decay point: event point insertion loss range: 0-0.1 dB; small attenuation point: event point insertion loss range: 0.1 dB to 0.3 dB; middle attenuation point: event point insertion loss range: 0.3 dB to 0.5 dB; large attenuation point: event point insertion loss range: above 0.5 dB.
The invention has the advantages that: the optical cable quality detection and analysis method provided by the invention formulates an effective quality control means and an evaluation system of the optical cable, improves the optical cable quality by applying an internet-based acquisition and big data analysis means, has a strong effect on improving the service operation quality and the company value, and can generate obvious economic benefits and social benefits. By implementing the technical scheme of the invention, taking a certain operator as an example, about 2437 people of labor are saved in the city of single city, about 6-12 people of personnel are reduced, and the goal of IT people exchange is realized; due to the fact that the workload of fiber core quality management is greatly reduced, and meanwhile, fiber core testing is periodically planned, and the method has the feasibility of replacing outsourcing with cost.
Drawings
FIG. 1 is a flow chart of a method for quality inspection and analysis of an optical cable according to the present invention;
fig. 2 is a flowchart of a deduplication method in the optical cable quality detection analysis method according to the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
Example 1
The invention provides an optical cable quality detection and analysis method, the flow chart of which is shown in figure 1 and is carried out according to the following steps:
and S1, connecting an instrument and a meter with the fiber core in the optical cable, collecting the total core number of the optical cable, the number of the fiber cores used, the number of the damaged fiber cores at the port and the number of the fiber cores not tested, testing data of the idle fiber core, and simultaneously transmitting the collected data to the data processor. The data for testing the spare core includes: chain length, average attenuation coefficient, number of event points, event point location, and event point insertion loss.
If the link port has service, the field fiber core is used and cannot be tested, the fiber core is used, the number of the used fiber cores is only counted, and the test is not carried out. If the fiber core has no data to be uploaded, the testing port is damaged and cannot be tested at all, and for the port damaged fiber core, the quantity of the damaged fiber cores of the port is counted. And if the port state is idle and no test data exists, uploading fiber cores for the untested uploading, and counting the number of the untested uploading fiber cores.
If the core is free, the test is performed. The test data includes: chain length, average attenuation coefficient, number of event points, event point location, and event point insertion loss. The number of event points refers to the number of abnormal points which cause loss or sudden change of reflected power except for normal scattering of the optical fiber; the event point location refers to any abnormal point location that causes a sudden change in loss or reflected power, in addition to the normal scattering of the fiber itself.
S2, the data processor processes the received data.
First, the data processor performs deduplication processing on the received data, and a flowchart of the deduplication processing is shown in fig. 2, where the deduplication algorithm is as follows:
the first step is as follows: comparing the test fiber core data of the same optical cable at the same moment, judging whether the number of the event points is repeated, judging that the fiber core data with the non-repeated number of the event points is not repeated, and otherwise, entering a second step;
the second step is that: judging whether the positions of the event points are the same in the test fiber core data (the allowable error is within the range of 150 meters), if not, judging that the data are not repeated, otherwise, entering a third step;
the third step: and judging whether the insertion loss of the event points is consistent (the allowable error is +/-0.003 dB) in the test fiber core data, if not, judging that the data is not repeated, otherwise, judging that the data is repeated.
Then, the data after the deduplication is processed as follows.
(1) Judging the quality of a single fiber core according to the average attenuation system, and counting the number of high-quality fiber cores, the number of qualified fiber cores, the number of available fiber cores and the number of unavailable fiber cores; and counting the number of broken fibers according to the chain length and whether the fiber core is damaged by the port.
The method for judging the quality of the single fiber core according to the average attenuation system comprises the following steps:
if the average attenuation coefficient is less than or equal to 0.25dB/KM, the fiber core is a high-quality fiber core; if 0.25dB/KM < the average attenuation coefficient is less than or equal to 0.35dB/KM, the fiber core is a qualified fiber core; if 0.35dB/KM < the average attenuation coefficient is less than or equal to 0.5dB/KM, the fiber core is a usable fiber core; if the average attenuation coefficient is > 0.5dB/KM, the core is a non-usable core. And counting the number of high-quality fiber cores, the number of qualified fiber cores, the number of available fiber cores and the number of unavailable fiber cores.
The method for judging fiber breakage comprises the following steps: if the chain length of the fiber core is less than 98% of the chain length of the longest fiber core in the measured optical cable, the fiber core is broken; if the core is a port-damaged core, the core is a broken fiber.
(2) And judging the qualified attenuation points, the small attenuation points, the medium attenuation points and the large attenuation points of the single optical fiber according to the range of the event point insertion loss, and counting the corresponding qualified attenuation point number, the small attenuation point number, the medium attenuation point number and the large attenuation point number.
The method for judging the consumption point level according to the range of the event point insertion loss comprises the following steps: qualified decay point: event point insertion loss range: 0-0.1 dB; small attenuation point: event point insertion loss range: 0.1 dB to 0.3 dB; middle attenuation point: event point insertion loss range: 0.3 dB to 0.5 dB; large attenuation point: event point insertion loss range: above 0.5 dB.
(3) Judging the condition of the event point of the single optical cable: and analyzing the number of the optical cable event points and the loss number existing at the position of the event point. For example, the following steps are carried out: and a 24-core optical cable with the whole length of 30km, wherein 24 cores at the 10km position have large attenuation points, the optical cable can be judged to be damaged or broken at the 10km position. If the attenuation points are all small, the phenomena of bending and the like of the optical cable are illustrated.
S3, diagnosing the health degree of the optical cable, wherein the health value of the optical cable = the fiber core qualified rate 100- (the fiber breaking quantity + the port damaged fiber core quantity) 2-the large attenuation point quantity 1- (the middle attenuation point quantity + the untested uploading fiber core quantity) 0.5,
wherein, the fiber core qualification rate = (the number of fiber cores used + the number of high-quality fiber cores + the number of qualified fiber cores)/(the total number of optical cable cores-the number of untested uploading fiber cores);
fiber core availability rate = (number of used fiber cores + number of good quality fiber cores + number of qualified fiber cores + number of available fiber cores)/(total number of optical cable cores-number of untested uploading fiber cores).
The cable health value can indicate the health of the cable. The higher the score is, the lower the number of attenuation points existing in the whole optical cable, the lower the attenuation and the high health degree. Otherwise, the same principle is applied. The health degree of the optical cable can be known through the score of the optical cable, and later maintenance and management are facilitated.
The optical cable health value obtained by the embodiment determines whether the optical cable is usable or not according to the fiber core qualification rate and the availability ratio, and the optical cable health value indicates the service life condition of the whole optical cable, indicates that the service life is long due to high score, indicates that the service life is short due to low score, and is possibly required to be replaced, and whether maintenance and replacement are required is determined by property rights units.
In the embodiment, the quality of the fiber core of the optical cable is controlled in a centralized manner, the requirement of 'double-change' is realized by an innovative means, the goals of cost reduction, efficiency improvement and high benefit operation are realized, three problems encountered in optical cable line maintenance are solved, the maintenance difficulty is greatly reduced, and the network maintenance efficiency and safety are improved. By implementing the technical scheme of the invention, taking a certain operator as an example, about 2437 people of labor are saved in the city of single city, about 6-12 people of personnel are reduced, and the goal of IT people exchange is realized; due to the fact that the workload of fiber core quality management is greatly reduced, and meanwhile, fiber core testing is periodically planned, and the method has the feasibility of replacing outsourcing with cost.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (3)
1. An optical cable quality detection and analysis method is characterized by comprising the following steps:
s1, connecting an instrument and a meter with the fiber core in the optical cable, collecting the total core number of the optical cable, the number of the fiber cores used, the number of the damaged fiber cores at the port and the number of the fiber cores not tested, testing the data of the idle fiber core, and simultaneously transmitting the collected data to a data processor; the data for testing the spare core includes: chain length, average attenuation coefficient, number of event points, position of event points and insertion loss of event points;
s2, the data processor processes the received data:
(1) judging the quality of a single fiber core according to the average attenuation coefficient, and counting the number of high-quality fiber cores, the number of qualified fiber cores, the number of available fiber cores and the number of unavailable fiber cores; counting the number of broken fibers according to the chain length and whether the fiber core is damaged by the port;
(2) judging qualified attenuation points, small attenuation points, middle attenuation points and large attenuation points of a single optical fiber according to the range of the event point insertion loss, and counting the corresponding qualified attenuation point number, small attenuation point number, middle attenuation point number and large attenuation point number;
the method for determining the consumption point level according to the range of the event point insertion loss in step S2 includes: qualified decay point: event point insertion loss range: 0-0.1 dB; small attenuation point: event point insertion loss range: 0.1 dB to 0.3 dB; middle attenuation point: event point insertion loss range: 0.3 dB to 0.5 dB; large attenuation point: event point insertion loss range: over 0.5dB
In step S2, after receiving the data of the instrumentation test, the data processor performs deduplication processing on the received data, where the deduplication algorithm is as follows:
the first step is as follows: comparing the test fiber core data of the same optical cable at the same moment, judging whether the number of the event points is repeated, judging that the fiber core data with the non-repeated number of the event points is not repeated, and otherwise, entering a second step;
the second step is that: judging whether the positions of the event points are the same in the test fiber core data, if the positions are different, judging that the data are not repeated, and if not, entering a third step;
the third step: judging whether the insertion loss of the event points is consistent in the test fiber core data, if not, judging that the data is not repeated, otherwise, judging that the data is repeated,
s3, diagnosing the health degree of the optical cable, wherein the health value of the optical cable is = fiber core qualification rate 100- (fiber breakage number + port damaged fiber core number) × 2-large attenuation point number 1- (middle attenuation point number + untested uploading fiber core number) × 0.5, wherein the fiber core qualification rate = (fiber core number + high-quality fiber core number + qualified fiber core number)/(total fiber core number of the optical cable-untested uploading fiber core number);
fiber core availability rate = (number of used fiber cores + number of good quality fiber cores + number of qualified fiber cores + number of available fiber cores)/(total number of optical cable cores-number of untested uploading fiber cores).
2. The method for detecting and analyzing the quality of the optical cable according to claim 1, wherein the method for judging the quality of the single fiber core by the average attenuation coefficient comprises the following steps: if the average attenuation coefficient is less than or equal to 0.25dB/KM, the fiber core is a high-quality fiber core; if 0.25dB/KM < the average attenuation coefficient is less than or equal to 0.35dB/KM, the fiber core is a qualified fiber core; if 0.35dB/KM < the average attenuation coefficient is less than or equal to 0.5dB/KM, the fiber core is a usable fiber core; if the average attenuation coefficient is > 0.5dB/KM, the core is a non-usable core.
3. The optical cable quality detection and analysis method according to claim 1, wherein the method for determining fiber breakage in step S2 is as follows: if the chain length of the fiber core is less than 98% of the chain length of the longest fiber core in the measured optical cable, the fiber core is broken; if the core is a port-damaged core, the core is a broken fiber.
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| CN103036614A (en) * | 2012-12-19 | 2013-04-10 | 广东电网公司电力调度控制中心 | Method and system of analyzing optical cable failures |
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