CN110690920A - Optical fiber testing method and device - Google Patents
Optical fiber testing method and device Download PDFInfo
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- CN110690920A CN110690920A CN201911023930.8A CN201911023930A CN110690920A CN 110690920 A CN110690920 A CN 110690920A CN 201911023930 A CN201911023930 A CN 201911023930A CN 110690920 A CN110690920 A CN 110690920A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0771—Fault location on the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0775—Performance monitoring and measurement of transmission parameters
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The embodiment of the invention relates to an optical fiber testing method and device, wherein the method comprises the following steps: acquiring bandwidth parameters of the optical fiber; injecting a first light source into the head end of the optical fiber, and recording the injection time of the first light source; receiving the receiving time of the first light source received by the second testing equipment sent by the second testing equipment at the tail end of the optical fiber; determining the length parameter of the optical fiber according to the transmission speed, the injection time and the receiving time of the first light source; injecting a second light source into the head end of the optical fiber, and recording first optical power of the second light source during injection; receiving second optical power of a second light source when the second test equipment sent by the second test equipment receives the second light source; calculating the difference value between the first optical power and the second optical power, and taking the difference value as the continuity parameter of the optical fiber; calculating a comprehensive parameter according to a preset algorithm based on the length parameter, the continuity parameter and the bandwidth parameter; and if the comprehensive parameter is smaller than a preset threshold value, determining the optical fiber fault.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for testing an optical fiber.
Background
In the field of communications technology, optical fibers are an important component of communications networks. The quality of the optical fiber affects the network communication quality. Whether the optical fiber breaks down or not can be known by testing the optical fiber, and the fault can be repaired in time, so that the stability of a communication network is improved.
At present, a commonly used optical fiber testing method only judges whether an optical fiber fails by testing a continuity parameter of the optical fiber, if the continuity parameter is greater than a certain threshold value, it is determined that the optical fiber fails, and if the continuity parameter is not greater than the threshold value, it is determined that the optical fiber is normal. The conventional optical fiber testing method cannot comprehensively reflect the state of the optical fiber, so that the optical fiber testing method is not favorable for the stability of a communication network on the contrary because a great error exists when determining whether the optical fiber fails.
Disclosure of Invention
The invention aims to provide an optical fiber testing method and device aiming at the defects of the prior art, which judge whether an optical fiber fails or not by comprehensively considering the length parameter, the continuity parameter and the bandwidth parameter of the optical fiber, effectively reduce the error of determining whether the optical fiber fails or not and further improve the stability of a communication network.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides an optical fiber testing method, which is applied to a first testing device, and includes:
acquiring bandwidth parameters of the optical fiber;
injecting a first light source into the head end of the optical fiber, and recording the injection time of the first light source;
receiving the receiving time of the first light source received by the second testing equipment sent by the second testing equipment at the tail end of the optical fiber;
determining a length parameter of the optical fiber according to the transmission speed of the first light source, the injection time and the receiving time;
injecting a second light source into the head end of the optical fiber, and recording the first optical power of the second light source during injection;
receiving second optical power of the second light source when the second test equipment receives the second light source, wherein the second optical power is sent by the second test equipment;
calculating the difference value between the first optical power and the second optical power, and taking the difference value as the continuity parameter of the optical fiber;
calculating a comprehensive parameter according to a preset algorithm based on the length parameter, the continuity parameter and the bandwidth parameter;
and if the comprehensive parameter is smaller than a preset threshold value, determining the optical fiber fault.
Preferably, the calculating a comprehensive parameter based on the length parameter, the continuity parameter and the bandwidth parameter according to a preset algorithm includes:
calculating the comprehensive parameters according to the following formula:
the integrated parameter is the length parameter/continuity parameter + bandwidth parameter.
Preferably, the method further comprises: and if the comprehensive parameter is not less than a preset threshold value, determining that the optical fiber is normal.
Preferably, the method further comprises: and outputting alarm information after the optical fiber fault is determined.
Preferably, the method further comprises: the transmission speed of the first light source is determined according to the material of the optical fiber.
In a second aspect, embodiments of the present invention provide an optical fiber testing apparatus, including:
the acquisition unit is used for acquiring the bandwidth parameters of the optical fiber;
a first determination unit which injects a first light source into the head end of the optical fiber and records the injection time of the first light source;
the first determining unit is further configured to receive a receiving time of the first light source received by the second testing device sent by the second testing device at the end of the optical fiber;
the first determining unit is further configured to determine a length parameter of the optical fiber according to the transmission speed of the first light source, the injection time, and the receiving time;
the second determining unit is used for injecting a second light source into the head end of the optical fiber and recording first optical power of the second light source during injection;
the second determining unit is further configured to receive a second optical power of the second light source when the second testing device receives the second light source, where the second optical power is sent by the second testing device;
the second determining unit is further configured to calculate a difference between the first optical power and the second optical power, and use the difference as a continuity parameter of the optical fiber;
the calculation unit is used for calculating a comprehensive parameter based on the length parameter, the continuity parameter and the bandwidth parameter according to a preset algorithm;
and the third determining unit is used for determining the optical fiber fault if the comprehensive parameter is smaller than a preset threshold value.
Preferably, the second determining unit is further configured to calculate a comprehensive parameter according to a preset algorithm based on the length parameter, the continuity parameter, and the bandwidth parameter, and includes:
the second determination unit calculates the synthetic parameter according to the following formula:
the integrated parameter is the length parameter/continuity parameter + bandwidth parameter.
Preferably, the third determination unit is further configured to: and if the comprehensive parameter is not less than a preset threshold value, determining that the optical fiber is normal.
Preferably, the apparatus further comprises: and the alarm unit is used for outputting alarm information after the optical fiber fault is determined.
Preferably, the first determination unit is further configured to determine a transmission speed of the first light source according to a material of the optical fiber.
According to the testing method provided by the embodiment of the invention, whether the optical fiber fails or not is judged by comprehensively considering the length parameter, the continuity parameter and the bandwidth parameter of the optical fiber, so that the error of determining whether the optical fiber fails or not is effectively reduced, and the stability of a communication network is improved.
Drawings
Fig. 1 is a schematic flow chart of an optical fiber testing method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an optical fiber testing apparatus according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
The embodiment of the invention provides an optical fiber testing method, which is applied to a first testing device. The first testing device is disposed at one end of the optical fiber, which is referred to as the head end of the optical fiber in this embodiment, and the second testing device is disposed at the other end of the optical fiber, which is referred to as the tail end of the optical fiber in this embodiment. The optical fiber testing method needs the first testing device and the second testing device to be matched. The present embodiment describes the optical fiber testing method with a first testing device as a main body, and a flow chart of the method is shown in fig. 1, which includes the following steps:
specifically, the optical fiber is used for transmitting network data, and the speed of the network data transmitted by the optical fiber is the bandwidth parameter, so the bandwidth parameter can directly reflect the quality of the optical fiber. A larger bandwidth parameter indicates a better quality of the fiber. The manner of obtaining the bandwidth parameter of the optical fiber may specifically be that the first testing device is installed with software for testing bandwidth, and the software is used to determine the bandwidth parameter of the optical fiber.
102, injecting a first light source into the head end of the optical fiber, and recording the injection time of the first light source;
specifically, in one example, the first light source includes, but is not limited to: laser, light emitting diode emitting light source. The first light source is used to test the length of the optical fiber. It is therefore necessary to record the time at which the first test equipment injects the first light source into the optical fiber.
103, receiving the receiving time of the first light source received by the second testing device sent by the second testing device at the tail end of the optical fiber;
specifically, the second testing device is arranged at the tail end of the optical fiber, and records the receiving time when receiving the first light source transmitted by the first testing device through optical fiber transmission. The second test device then sends the receive time to the first test device. And after receiving the receiving time sent by the second testing equipment, the first testing equipment records the receiving time.
104, determining the length parameter of the optical fiber according to the transmission speed, the injection time and the receiving time of the first light source;
specifically, in an example, since the transmission speeds of different light sources are different and the transmission speeds of the same light source in different media are also different, the first testing device may store a corresponding relationship between the light source, the optical fiber material, and the transmission speed, and the first testing device may determine the transmission speed of the first light source according to the material of the optical fiber by using the corresponding relationship.
In one example, the first testing device may calculate a length parameter of the optical fiber using the following formula;
length parameter is the transmission speed (receive time-inject time).
specifically, in one example, the second light source includes, but is not limited to: laser, light emitting diode emitting light source. The second light source is used to test the continuity of the optical fiber. It is therefore necessary to record the first optical power of the injection of the second light source in the optical fiber by the first testing device.
specifically, the second testing device is disposed at a tail end of the optical fiber, and records a second optical power of the second light source when the second testing device receives the second light source transmitted by the first testing device through the optical fiber. The second test equipment then transmits the second optical power to the first test equipment. And the first test equipment records the second optical power after receiving the second optical power sent by the second test equipment.
in particular, if there is a break or other discontinuity in the optical fiber, the optical power output at the end of the fiber is reduced or no optical output at all compared to the optical power injected at the head end, so that the magnitude of the difference between the first optical power and the second optical power is indicative of the conductivity of the fiber. Based on this, the difference between the first optical power and the second optical power is taken as the continuity parameter of the optical fiber.
specifically, if the integrated parameter is smaller than the preset threshold, the following step 109 is executed. If the integrated parameter is not less than the predetermined threshold, the following step 110 is executed.
In one example, the first testing device may calculate the composite parameter according to the following formula:
the integrated parameter is the length parameter/continuity parameter + bandwidth parameter.
specifically, if the comprehensive parameter is smaller than a preset threshold, the fiber fault is determined.
After the first test equipment determines that the optical fiber is in fault, alarm information can be output. In one example, the first testing device may send an alarm message to a terminal of a predetermined fiber monitoring person after determining that the optical fiber is faulty.
specifically, if the comprehensive parameter is not less than the preset threshold, it is determined that the optical fiber is normal.
According to the optical fiber testing method provided by the embodiment of the invention, whether the optical fiber fails or not is judged by comprehensively considering the length parameter, the continuity parameter and the bandwidth parameter of the optical fiber, so that the error of determining whether the optical fiber fails or not is effectively reduced, and the stability of a communication network is improved.
Correspondingly, an embodiment of the present invention further provides an optical fiber testing apparatus for implementing the optical fiber testing method, and a schematic structural diagram of the apparatus is shown in fig. 2, where the optical fiber testing apparatus includes: the device comprises an acquisition unit 201, a first determination unit 202, a second determination unit 203, a calculation unit 204, a third determination unit 205 and an alarm unit 206.
The obtaining unit 201 is configured to obtain a bandwidth parameter of an optical fiber.
The first determination unit 202 injects the first light source at the head end of the optical fiber and records the injection time of the first light source.
Preferably, the first light source includes: laser, light emitting diode emitting light source.
The first determining unit 202 is further configured to receive a receiving time of the first light source received by the second testing device sent by the second testing device at the end of the optical fiber.
The first determining unit 202 is further configured to determine a length parameter of the optical fiber according to the transmission speed, the injection time, and the receiving time of the first light source.
The second determining unit 203 is configured to inject a second light source into the head end of the optical fiber, and record a first optical power of the second light source at the time of injection.
Preferably, the second light source includes: laser, light emitting diode emitting light source.
The second determining unit 203 is further configured to receive a second optical power of the second light source when the second testing device receives the second light source, where the second testing device sends the second optical power.
The second determining unit 203 is further configured to calculate a difference between the first optical power and the second optical power, and use the difference as the continuity parameter of the optical fiber.
The calculating unit 204 is configured to calculate a comprehensive parameter according to a preset algorithm based on the length parameter, the continuity parameter, and the bandwidth parameter.
The third determining unit 205 is configured to determine that the optical fiber is faulty if the comprehensive parameter is smaller than the preset threshold.
Preferably, the second determining unit 203 is further configured to calculate an integrated parameter according to a preset algorithm based on the length parameter, the continuity parameter and the bandwidth parameter, and includes:
the second determination unit 203 calculates the integrated parameter according to the following formula:
the integrated parameter is the length parameter/continuity parameter + bandwidth parameter.
Preferably, the third determining unit 205 is further configured to: and if the comprehensive parameters are not less than the preset threshold value, determining that the optical fiber is normal.
Preferably, the optical fiber testing apparatus further comprises: and the alarm unit is used for outputting alarm information after the optical fiber fault is determined.
Preferably, the first determination unit 201 is further configured to determine the transmission speed of the first light source according to the material of the optical fiber.
According to the optical fiber testing device provided by the embodiment of the invention, whether the optical fiber fails or not is judged by comprehensively considering the length parameter, the continuity parameter and the bandwidth parameter of the optical fiber, so that the error of determining whether the optical fiber fails or not is effectively reduced, and the stability of a communication network is improved.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An optical fiber testing method, wherein the method is applied to a first testing device, and the method comprises the following steps:
acquiring bandwidth parameters of the optical fiber;
injecting a first light source into the head end of the optical fiber, and recording the injection time of the first light source;
receiving the receiving time of the first light source received by the second testing equipment sent by the second testing equipment at the tail end of the optical fiber;
determining a length parameter of the optical fiber according to the transmission speed of the first light source, the injection time and the receiving time;
injecting a second light source into the head end of the optical fiber, and recording the first optical power of the second light source during injection;
receiving second optical power of the second light source when the second test equipment receives the second light source, wherein the second optical power is sent by the second test equipment;
calculating the difference value between the first optical power and the second optical power, and taking the difference value as the continuity parameter of the optical fiber;
calculating a comprehensive parameter according to a preset algorithm based on the length parameter, the continuity parameter and the bandwidth parameter;
and if the comprehensive parameter is smaller than a preset threshold value, determining the optical fiber fault.
2. The method of claim 1, wherein calculating a composite parameter based on the length parameter, the continuity parameter, and the bandwidth parameter according to a predetermined algorithm comprises:
calculating the comprehensive parameters according to the following formula:
the integrated parameter is the length parameter/continuity parameter + bandwidth parameter.
3. The method of claim 1, further comprising:
and if the comprehensive parameter is not less than a preset threshold value, determining that the optical fiber is normal.
4. The method of claim 1, further comprising:
and outputting alarm information after the optical fiber fault is determined.
5. The method of claim 1, further comprising:
the transmission speed of the first light source is determined according to the material of the optical fiber.
6. An optical fiber testing apparatus, the apparatus comprising:
the acquisition unit is used for acquiring the bandwidth parameters of the optical fiber;
a first determination unit which injects a first light source into the head end of the optical fiber and records the injection time of the first light source;
the first determining unit is further configured to receive a receiving time of the first light source received by the second testing device sent by the second testing device at the end of the optical fiber;
the first determining unit is further configured to determine a length parameter of the optical fiber according to the transmission speed of the first light source, the injection time, and the receiving time;
the second determining unit is used for injecting a second light source into the head end of the optical fiber and recording first optical power of the second light source during injection;
the second determining unit is further configured to receive a second optical power of the second light source when the second testing device receives the second light source, where the second optical power is sent by the second testing device;
the second determining unit is further configured to calculate a difference between the first optical power and the second optical power, and use the difference as a continuity parameter of the optical fiber;
the calculation unit is used for calculating a comprehensive parameter based on the length parameter, the continuity parameter and the bandwidth parameter according to a preset algorithm;
and the third determining unit is used for determining the optical fiber fault if the comprehensive parameter is smaller than a preset threshold value.
7. The apparatus of claim 6, wherein the second determining unit is further configured to calculate a comprehensive parameter according to a preset algorithm based on the length parameter, the continuity parameter, and the bandwidth parameter, and comprises:
the second determination unit calculates the synthetic parameter according to the following formula:
the integrated parameter is the length parameter/continuity parameter + bandwidth parameter.
8. The apparatus of claim 6, wherein the third determining unit is further configured to:
and if the comprehensive parameter is not less than a preset threshold value, determining that the optical fiber is normal.
9. The apparatus of claim 6, further comprising:
and the alarm unit is used for outputting alarm information after the optical fiber fault is determined.
10. The apparatus according to claim 6, wherein the first determining unit is further configured to determine the transmission speed of the first light source according to the material of the optical fiber.
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| CN201911023930.8A CN110690920A (en) | 2019-10-25 | 2019-10-25 | Optical fiber testing method and device |
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Application publication date: 20200114 |