CN119449158A - An online optical time domain reflectometer - Google Patents
An online optical time domain reflectometer Download PDFInfo
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- CN119449158A CN119449158A CN202411527536.9A CN202411527536A CN119449158A CN 119449158 A CN119449158 A CN 119449158A CN 202411527536 A CN202411527536 A CN 202411527536A CN 119449158 A CN119449158 A CN 119449158A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 108
- 239000013307 optical fiber Substances 0.000 claims abstract description 84
- 238000012545 processing Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims description 32
- 230000002159 abnormal effect Effects 0.000 claims description 11
- 238000010586 diagram Methods 0.000 claims description 11
- 230000005856 abnormality Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 3
- 241001522296 Erithacus rubecula Species 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 238000000253 optical time-domain reflectometry Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
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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
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
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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
-
- 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
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses an online optical time domain reflectometer, which relates to the field of optical fiber detection and comprises an optical time domain reflectometer body, wherein a wiring board is fixedly connected to the outer wall of the optical time domain reflectometer body, an optical fiber connector is fixedly connected to the outer wall of the wiring board, a network cable interface is embedded in the outer wall of the optical time domain reflectometer body, and the optical time domain reflectometer body comprises a shell, a base and an online optical fiber detection mechanism. The invention analyzes the information of attenuation, loss, connection point, fault point and the like in the optical fiber by processing and analyzing the received optical signal data and measuring the parameters of signal intensity, time delay and the like in real time, realizes data transmission and remote operation by network connection, and can know the quality condition of the whole optical fiber network by online OTDR test, including the parameters of attenuation, loss, reflection loss and the like, monitor the network state in real time, discover potential problems in time, realize online optical fiber detection and improve the detection efficiency.
Description
Technical Field
The invention relates to the technical field of optical fiber detection, in particular to an online optical time domain reflectometer.
Background
The OTDR optical time domain reflectometer uses the Rayleigh scattering and the back signal generated by Fresnel reflection of the optical fiber to detect the parameters of the optical fiber link, and determines the information such as attenuation, connection loss, fault position and the like in the optical fiber by sending a short pulse optical signal and measuring the reflection or scattering of the optical signal.
However, in the prior art, the existing optical time domain reflectometer is generally large and needs manual operation and separate test, the working efficiency is relatively low, the state of each node can not be monitored in real time when the network operates, and the test coverage range is limited, so that some sudden faults or problems can not be found immediately, and some hidden problems can not be missed.
Disclosure of Invention
The invention aims to provide an online optical time domain reflectometer, which is used for solving the problems that the existing optical time domain reflectometer provided by the background technology is large in size, needs manual operation and independent test, is relatively low in working efficiency, cannot monitor the states of all nodes in real time during network operation, has limited test coverage range, cannot immediately find out some sudden faults or problems, and leaks to detect some hidden problems.
The online optical time domain reflectometer comprises an optical time domain reflectometer body, wherein the outer wall of the optical time domain reflectometer body is fixedly connected with a wiring board, the outer wall of the wiring board is fixedly connected with an optical fiber connector, a network cable interface is embedded in the outer wall of the optical time domain reflectometer body, the optical time domain reflectometer body comprises a shell, a base and an online optical fiber detection mechanism, the shell is clamped on two sides of the base, the online optical fiber detection mechanism is arranged on the inner wall of the base, and the online optical fiber detection mechanism comprises a light source, a transmitting module, a detector, a time sequence controller, a data processing unit and a monitoring alarm module;
The light source and the emission module are responsible for generating an optical pulse signal for testing, and are connected with the optical fiber connector and the network cable interface to support 4G/Ethernet access;
The detector is used for capturing the optical signal returned from the tested optical fiber and converting the optical signal into an electric signal for processing and analysis;
The time sequence controller is used for controlling the time delay and duration of the optical pulse signal sent by the light source, supporting the single-mode optical fiber test and supporting the measurement distance of 0-150 km;
the data processing unit is used for executing round robin among the interfaces, processing and analyzing the optical signal data acquired from the detector and realizing fault location;
the monitoring alarm module is used for monitoring power failure, network abnormality and wireless loss alarm.
Preferably, the clamping grooves are formed in the inner walls of the two ends of the shell, clamping plates are clamped in the clamping grooves, and the clamping plates are fixedly connected to the outer wall of the base.
Preferably, the outer walls of the two sides of the shell are provided with heat dissipation holes in a penetrating way.
Preferably, the fixed slots are formed in the outer walls of the two sides of the base, a poking slot is formed above the fixed slots, and the poking slot is formed in the bottom surface of the shell.
Preferably, the outer wall of wiring board has cup jointed the fixed plate, the outer wall fixed connection of fixed plate and optical time domain reflectometer body, the fixed orifices has all been seted up in the both ends outer wall of fixed plate in a penetrating way, one side of fixed orifices is provided with the pull ring, pull ring fixed connection is at the outer wall of fixed plate.
Preferably, the light source and the emission module comprise a laser and an exciter;
the laser is used for generating a high-brightness optical pulse signal and is used as an input signal of the test optical fiber;
The exciter is used for controlling the switching and modulation of the light source to generate a required light pulse signal.
Preferably, the detector comprises a receiving module, a light detector, a signal processor and a data output interface;
The receiving module comprises an optical receiver and a signal amplifier, and is used for receiving optical signals reflected and scattered from the tested optical fiber;
The optical detector is used for converting the optical signal into an electric signal;
The signal processor is used for amplifying, filtering and digitizing the received electric signals;
The data output interface is used for transmitting the processed optical signal data to the data processing unit for further analysis and display.
Preferably, the data processing unit comprises a data receiving and storing module, a data processing and analyzing module, a fault positioning module and a data transmission module;
the data receiving and storing module receives the optical signal data from the receiving module and stores the optical signal data;
The data processing and analyzing module is used for processing and analyzing the received optical signal data and converting the received optical signal data into a waveform diagram and a graph to be output;
The fault positioning module is used for determining the fault position existing in the optical fiber network by analyzing the waveform diagram or the graph;
the data transmission module supports wireless network connection and wired network connection through the 4GSIM card, and performs data exchange and communication with other devices.
Preferably, the monitoring alarm module comprises an abnormality detection module, an alarm notification module, a history recording module and a remote monitoring module;
the abnormality detection module detects possible abnormal conditions in the optical fiber network in real time by monitoring signal intensity, reflectivity and fault condition parameters of the optical fiber network;
the alarm notification module is used for sending out sound, optical signals or displaying alarm information when abnormal conditions are detected, reminding a user to pay attention and timely taking measures to troubleshoot problems;
The history recording module is used for recording history alarm information, including abnormal occurrence time, specific position and processing condition, for user to inquire and analyze;
the remote monitoring module is connected with the remote monitoring module through a network to remotely check the operation condition and the alarm information of the optical fiber network, so as to realize remote monitoring and management of the network.
Compared with the prior art, the invention has the beneficial effects that:
1. In the invention, the received optical signal data is processed and analyzed, the information such as attenuation, loss, connection point, fault point and the like in the optical fiber is analyzed in real time by measuring the parameters such as signal intensity, time delay and the like, the data transmission and remote operation are realized by network connection, and the quality condition of the whole optical fiber network including the parameters such as attenuation, loss, reflection loss and the like can be known by a user through online OTDR test, so that the network state is monitored in real time, potential problems are found in time, the online optical fiber detection is realized, and the detection efficiency is improved.
2. According to the invention, the shell and the base can be conveniently and rapidly clamped and installed through the clamping between the clamping groove and the clamping plate, and in the subsequent use process, the clamping plate and the clamping groove can be rapidly separated through the poking groove, so that the shell is rapidly detached from the base, and a user can conveniently overhaul an online optical fiber detection mechanism in the optical time domain reflectometer body.
3. In the invention, through the cooperation of the receiving module and the detector, the OTDR can receive and analyze the optical signals transmitted back from the tested optical fiber, rapidly and accurately measure the loss, reflection and fault conditions of the optical fiber, and a user can remotely check the operation condition and alarm information of the optical fiber network through network connection, thereby realizing remote monitoring and management of the network, timely finding out abnormal conditions in the optical fiber network, rapidly reacting, and improving the reliability and stability of the network.
Drawings
FIG. 1 is a schematic diagram of an on-line optical time domain reflectometer according to the present invention;
FIG. 2 is a schematic diagram of a rear view structure of an on-line optical time domain reflectometer according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a housing part of an on-line optical time domain reflectometer according to the present invention;
FIG. 4 is a schematic structural diagram of an online optical fiber detection mechanism of an online optical time domain reflectometer according to the present invention;
Fig. 5 is a schematic structural diagram of an online optical time domain reflectometer data processing unit according to the present invention.
In the figure, 1, an optical time domain reflectometer body, 11, a shell, 12, a base, 13, a fixing groove, 14, a radiating hole, 15, an online optical fiber detection mechanism, 16, a clamping groove, 17, a clamping plate, 18, a poking groove, 2, a fixing plate, 21, a fixing hole, 3, a pull ring, 4, a wiring board, 41, an optical fiber connecting port, 42 and a network cable interface.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-5, An online optical time domain reflectometer comprises an optical time domain reflectometer body 1, wherein a wiring board 4 is fixedly connected to the outer wall of the optical time domain reflectometer body 1, an optical fiber connector 41 is fixedly connected to the outer wall of the wiring board 4, a network cable interface 42 is embedded and installed on the outer wall of the optical time domain reflectometer body 1, the optical time domain reflectometer body 1 comprises a shell 11, a base 12 and an online optical fiber detection mechanism 15, the shell 11 is clamped on two sides of the base 12, the online optical fiber detection mechanism 15 is installed on the inner wall of the base 12, and the online optical fiber detection mechanism 15 comprises a light source and a transmitting module, a detector, a time schedule controller, a data processing unit and a monitoring alarm module;
The light source and the emission module are responsible for generating optical pulse signals for testing, and are connected with the optical fiber connection port 41 and the network cable interface 42 to support 4G/Ethernet access;
the detector is used for capturing the optical signal returned from the tested optical fiber and converting the optical signal into an electric signal for processing and analysis;
The time sequence controller is used for controlling the time delay and duration of the optical pulse signal sent by the light source, supporting the single-mode optical fiber test and supporting the measurement distance of 0-150 km;
The data processing unit is used for executing round inspection among the interfaces, processing and analyzing the optical signal data acquired from the detector and realizing fault location, and specifically comprises a data receiving and storing module, a data processing and analyzing module, a fault location module and a data transmission module;
The data receiving and storing module receives the optical signal data from the receiving module and stores the optical signal data;
The data processing analysis module is used for processing and analyzing the received optical signal data and converting the received optical signal data into a waveform diagram and a graph to be output;
the fault positioning module is used for determining the fault position existing in the optical fiber network by analyzing the waveform diagram or the graph;
The data transmission module supports wireless network connection and wired network connection through a 4GSIM card, and exchanges and communicates data with other devices;
the monitoring alarm module is used for monitoring power failure, network abnormality and wireless loss alarm.
In this embodiment, the optical fiber detection device is plugged with an optical fiber to be detected through an optical fiber connector 41, and is connected with a wired network through a network cable interface 42, the optical pulse signals for testing are generated by utilizing a light source and a transmitting module of an online optical fiber detection mechanism 15, the optical pulse signals are transmitted and reflected back along the optical fiber, the received optical signal data are processed and analyzed, the information such as attenuation, loss, connection point, fault point and the like in the optical fiber is analyzed in real time through measuring parameters such as the intensity, time delay and the like of the signals, the data transmission and the remote operation are realized through network connection, and a user can know the quality condition of the whole optical fiber network through online OTDR testing, including the parameters such as attenuation, loss, reflection loss and the like, monitor the network state in real time, find potential problems in time, and realize fault location.
In the second embodiment, as shown in fig. 1-3, clamping grooves 16 are formed in inner walls of two ends of a housing 11, clamping plates 17 are clamped in the clamping grooves 16, the clamping plates 17 are fixedly connected to the outer walls of a base 12, radiating holes 14 are formed in the outer walls of two sides of the housing 11 in a penetrating mode, fixing grooves 13 are formed in the outer walls of two sides of the base 12, a poking groove 18 is formed in the upper portion of the fixing grooves 13, the poking groove 18 is formed in the bottom face of the housing 11, a fixing plate 2 is sleeved on the outer wall of a wiring board 4, the fixing plate 2 is fixedly connected with the outer wall of an optical time domain reflectometer body 1, fixing holes 21 are formed in the outer walls of two ends of the fixing plate 2 in a penetrating mode, pull rings 3 are arranged on one sides of the fixing holes 21, and the pull rings 3 are fixedly connected to the outer wall of the fixing plate 2.
In this embodiment, the housing 11 and the base 12 can be conveniently and rapidly clamped and installed by the clamping connection between the clamping groove 16 and the clamping plate 17, and in the subsequent use process, the poking groove 18 can be poked through the fixing groove 13 of the base 12, so that the clamping plate 17 and the clamping groove 16 are rapidly separated, the housing 11 is rapidly detached from the base 12, and a user can conveniently overhaul the online optical fiber detection mechanism 15 in the optical time domain reflectometer body 1.
The third embodiment is that according to the figures 4-5, the light source and the emitting module comprise a laser and an exciter, wherein the laser is used for generating a high-brightness light pulse signal as an input signal of the test optical fiber, and the exciter is used for controlling the switch and the modulation of the light source so as to generate a required light pulse signal;
The detector comprises a receiving module, a light detector, a signal processor and a data output interface, wherein the receiving module comprises an optical receiver and a signal amplifier and is used for receiving optical signals reflected and scattered from an optical fiber to be tested, the light detector is used for converting the optical signals into electric signals, the signal processor is used for amplifying, filtering and digitizing the received electric signals, and the data output interface is used for transmitting the processed optical signal data to a data processing unit for further analysis and display;
The monitoring alarm module comprises an abnormality detection module, an alarm notification module, a history recording module and a remote monitoring module, wherein the abnormality detection module is used for detecting possible abnormal conditions in the optical fiber network in real time by monitoring signal intensity, reflectivity and fault condition parameters of the optical fiber network, the alarm notification module is used for sending out sound, optical signals or displaying alarm information when the abnormal conditions are detected, reminding a user to pay attention to and take measures in time to check problems, the history recording module is used for recording history alarm information comprising abnormal occurrence time, specific positions and processing conditions for the user to inquire and analyze, and the remote monitoring module is used for remotely checking the operation condition and the alarm information of the optical fiber network through network connection so as to realize remote monitoring and management of the network.
In this embodiment, a high-brightness optical pulse signal is generated by a laser as an input signal of a test optical fiber, and an exciter is used to control the switching and modulation of a light source so as to generate a required optical pulse signal, through the cooperation of a receiving module and a detector, an OTDR can receive and analyze the optical signal transmitted back from the tested optical fiber, quickly and accurately measure the loss, reflection and fault conditions of the optical fiber, and through an alarm monitoring module, a user can remotely check the operation conditions and alarm information of the optical fiber network through network connection, thereby realizing remote monitoring and management of the network, timely finding out abnormal conditions in the optical fiber network, quickly reacting, and improving the reliability and stability of the network.
The application method and the working principle of the device are as follows: the optical fiber is spliced with an optical fiber to be tested through an optical fiber connecting port 41, is connected with a wired network through a network interface 42, generates a high-brightness optical pulse signal through a laser, is used as an input signal of the test optical fiber, controls the switching and the modulation of a light source through an exciter to generate optical pulse signals for testing, the optical pulse signals are transmitted and reflected back along the optical fiber, the received optical signal data are processed and analyzed, the attenuation, loss, connecting point, fault point and other information in the optical fiber are analyzed in real time through parameters such as the intensity, time delay and the like of the measured signal, the data transmission and the remote operation are realized through the network connection, and a user can know the quality condition of the whole optical fiber network through the online OTDR test, the optical fiber monitoring system comprises parameters such as attenuation, loss, reflection loss and the like, an OTDR can receive and analyze optical signals transmitted back from a tested optical fiber through the cooperation of a receiving module and a detector, loss, reflection and fault conditions of the optical fiber can be measured rapidly and accurately, a user can remotely check the operation condition and alarm information of an optical fiber network through network connection through an alarm monitoring module, remote monitoring and management of the network are realized, the shell 11 and the base 12 can be conveniently and rapidly clamped and installed through clamping between the clamping groove 16 and the clamping plate 17, and in the subsequent use process, the poking groove 18 can be poked through the fixing groove 13 of the base 12, so that the clamping plate 17 and the clamping groove 16 are rapidly separated, and the shell 11 is rapidly detached from the base 12.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. An online optical time domain reflectometer comprises an optical time domain reflectometer body (1), and is characterized in that a wiring board (4) is fixedly connected to the outer wall of the optical time domain reflectometer body (1), an optical fiber connector (41) is fixedly connected to the outer wall of the wiring board (4), a network cable interface (42) is embedded and installed in the outer wall of the optical time domain reflectometer body (1), the optical time domain reflectometer body (1) comprises a shell (11), a base (12) and an online optical fiber detection mechanism (15), the shell (11) is clamped on two sides of the base (12), the online optical fiber detection mechanism (15) is installed on the inner wall of the base (12), and the online optical fiber detection mechanism (15) comprises a light source, an emission module, a detector, a time schedule controller, a data processing unit and a monitoring alarm module;
the light source and the emission module are responsible for generating optical pulse signals for testing, are connected with the optical fiber connection port (41) and the network cable interface (42) and support 4G/Ethernet access;
The detector is used for capturing the optical signal returned from the tested optical fiber and converting the optical signal into an electric signal for processing and analysis;
The time sequence controller is used for controlling the time delay and duration of the optical pulse signal sent by the light source, supporting the single-mode optical fiber test and supporting the measurement distance of 0-150 km;
the data processing unit is used for executing round robin among the interfaces, processing and analyzing the optical signal data acquired from the detector and realizing fault location;
the monitoring alarm module is used for monitoring power failure, network abnormality and wireless loss alarm.
2. The on-line optical time domain reflectometer of claim 1, wherein clamping grooves (16) are formed in inner walls of two ends of the shell (11), clamping plates (17) are clamped in the clamping grooves (16), and the clamping plates (17) are fixedly connected to the outer wall of the base (12).
3. The on-line optical time domain reflectometer as claimed in claim 2, wherein the outer walls of the two sides of the housing (11) are provided with heat dissipation holes (14) in a penetrating manner.
4. The on-line optical time domain reflectometer of claim 3, wherein the outer walls of the two sides of the base (12) are provided with fixed grooves (13), a poking groove (18) is arranged above the fixed grooves (13), and the poking groove (18) is arranged on the bottom surface of the shell (11).
5. The on-line optical time domain reflectometer according to claim 1, wherein the outer wall of the wiring board (4) is sleeved with a fixing board (2), the fixing board (2) is fixedly connected with the outer wall of the optical time domain reflectometer body (1), fixing holes (21) are formed in the outer walls of the two ends of the fixing board (2) in a penetrating mode, a pull ring (3) is arranged on one side of the fixing holes (21), and the pull ring (3) is fixedly connected with the outer wall of the fixing board (2).
6. The on-line optical time domain reflectometer of claim 1, wherein the light source and emission module comprises a laser and an exciter;
the laser is used for generating a high-brightness optical pulse signal and is used as an input signal of the test optical fiber;
The exciter is used for controlling the switching and modulation of the light source to generate a required light pulse signal.
7. The on-line optical time domain reflectometer of claim 1, wherein the detector comprises a receiving module, a photodetector, a signal processor and a data output interface;
The receiving module comprises an optical receiver and a signal amplifier, and is used for receiving optical signals reflected and scattered from the tested optical fiber;
The optical detector is used for converting the optical signal into an electric signal;
The signal processor is used for amplifying, filtering and digitizing the received electric signals;
The data output interface is used for transmitting the processed optical signal data to the data processing unit for further analysis and display.
8. The on-line optical time domain reflectometer of claim 1, wherein the data processing unit comprises a data receiving and storing module, a data processing and analyzing module, a fault positioning module and a data transmission module;
the data receiving and storing module receives the optical signal data from the receiving module and stores the optical signal data;
The data processing and analyzing module is used for processing and analyzing the received optical signal data and converting the received optical signal data into a waveform diagram and a graph to be output;
The fault positioning module is used for determining the fault position existing in the optical fiber network by analyzing the waveform diagram or the graph;
the data transmission module supports wireless network connection and wired network connection through the 4GSIM card, and performs data exchange and communication with other devices.
9. The on-line optical time domain reflectometer of claim 1, wherein the monitoring and alarming module comprises an abnormality detection module, an alarming notification module, a history recording module and a remote monitoring module;
the abnormality detection module detects possible abnormal conditions in the optical fiber network in real time by monitoring signal intensity, reflectivity and fault condition parameters of the optical fiber network;
the alarm notification module is used for sending out sound, optical signals or displaying alarm information when abnormal conditions are detected, reminding a user to pay attention and timely taking measures to troubleshoot problems;
The history recording module is used for recording history alarm information, including abnormal occurrence time, specific position and processing condition, for user to inquire and analyze;
the remote monitoring module is connected with the remote monitoring module through a network to remotely check the operation condition and the alarm information of the optical fiber network, so as to realize remote monitoring and management of the network.
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| CN202411527536.9A CN119449158A (en) | 2024-10-30 | 2024-10-30 | An online optical time domain reflectometer |
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