CN111726162A - Optical fiber breakpoint detection device, detection system and detection method - Google Patents
Optical fiber breakpoint detection device, detection system and detection method Download PDFInfo
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- CN111726162A CN111726162A CN202010558688.0A CN202010558688A CN111726162A CN 111726162 A CN111726162 A CN 111726162A CN 202010558688 A CN202010558688 A CN 202010558688A CN 111726162 A CN111726162 A CN 111726162A
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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
- H04B10/079—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
Abstract
The embodiment of the application provides an optical fiber breakpoint detection device, an optical fiber breakpoint detection system and an optical fiber breakpoint detection method, wherein the optical fiber breakpoint detection device comprises: the optical fiber positioning device comprises an optical transceiving element, a laser driving element, a control element and a communication element, wherein the communication element is used for realizing communication between the control element and a control platform, so that the control element can receive a control instruction sent by the control platform and respond to the control instruction of the control platform, the laser driving element is firstly controlled to send a driving signal to the optical transceiving element, the optical transceiving element sends an optical signal to an optical fiber to be detected and receives the optical signal returned by the optical fiber to be detected, then the detection data of the optical fiber to be detected is determined based on the optical signal sent by the optical transceiving element and the received optical signal, and the detection data is sent to the control platform, so that the optical cable fault can be quickly, conveniently and conveniently.
Description
Technical Field
The present disclosure relates to the field of optical fiber communication technologies, and in particular, to an optical fiber breakpoint detection device, an optical fiber breakpoint detection system including the optical fiber breakpoint detection device, and an optical fiber breakpoint detection method using the optical fiber breakpoint detection device.
Background
With the rapid development of optical fiber communication and optical fiber sensing technologies, optical fiber cables are widely applied in nearly 20 years, and according to the statistical data, the total length of the optical cable line in China is over 4500 kilometers by 2019, and a new optical cable laying peak is lifted in China along with the construction of a 5G network in China.
With the increase of the number and the distance of the optical cables, the problem of maintaining and managing the optical cables follows, and therefore, how to quickly, cheaply and simply locate the optical cable fault is a problem which is urgently expected to be solved by a vast optical cable maintenance unit at present.
Disclosure of Invention
In view of this, the present application provides an optical fiber breakpoint detection device, an optical fiber breakpoint detection system, and an optical fiber breakpoint detection method, so as to achieve fast, low-cost, and simple and convenient positioning of an optical cable fault.
In order to achieve the above purpose, the present application provides the following technical solutions:
an optical fiber breakpoint detection device, comprising: a light receiving and transmitting element, a laser driving element, a control element and a communication element, wherein,
the optical transceiver component is used for transmitting an optical signal to the optical fiber to be tested and receiving the optical signal returned by the optical fiber to be tested;
the control element is used for responding to a control instruction of the control platform, controlling the laser driving element to send a driving signal to the optical transceiver element so that the optical transceiver element emits an optical signal, and determining optical fiber detection data to be detected based on the optical signal emitted by the optical transceiver element and the received optical signal;
the communication element is used for realizing communication between the control element and the control platform, so that the control element can receive a control instruction sent by the control platform and send detection data to the control platform.
Optionally, the optical transceiver component includes: the device comprises a pulse laser, a photoelectric detector and a coupler; the coupler is used for transmitting the optical signal emitted by the pulse laser to the optical fiber to be detected and transmitting the optical signal output by the optical fiber to be detected to the photoelectric detector.
Optionally, the pulse laser, the photodetector and the coupler are packaged into an integral structure.
Optionally, the method further includes:
the logarithmic amplification element is positioned between the photoelectric detector and the control element and is used for amplifying the signal output by the photoelectric detector to a range which can be received by the control element.
Optionally, the detection data includes a breakpoint position of the optical fiber, a pulse width of the optical signal transmitted by the optical transceiver element, and a sampling interval of the control element.
Optionally, the optical fiber breakpoint device further comprises a storage element, and the storage element is used for storing the optical fiber breakpoint position.
Optionally, the communication element includes at least one of an I2C interface and a bluetooth communication module.
Optionally, the control element is configured to control the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal, and when determining the detection data of the optical fiber to be detected based on the optical signal emitted by the optical transceiver element and the received optical signal, the control element is specifically configured to:
and responding to a control instruction of a control platform, controlling the laser driving element to send a driving signal to the optical transceiving element, enabling the optical transceiving element to transmit an optical signal with a preset pulse width, simultaneously collecting the optical signal received by the optical transceiving element at a preset sampling frequency, and determining the detection data of the optical fiber to be detected based on the optical signal transmitted by the optical transceiving element and the received optical signal.
Optionally, the control element is configured to control the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal, and determine, based on the optical signal emitted by the optical transceiver element and the received optical signal, that the optical fiber detection data to be detected is specifically used for:
the control element is used for responding to a control instruction of the control platform and starting an optical fiber breakpoint detection function;
in the optical fiber breakpoint detection process, the control element is specifically configured to:
determining M test points in a region to be tested of an optical fiber to be tested, controlling the laser driving element to send a first driving signal to the optical transceiver element for any one test point in the M test points, enabling the optical transceiver element to emit an optical signal with a first pulse width, collecting the optical signal received by the photoelectric detector at a first sampling frequency, simultaneously obtaining ith detection data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an ith detection interval based on the ith detection data;
determining K test points in an ith test interval, sending an i +1 th driving signal to the optical transceiver element for any test point in the K test points, enabling the pulse laser to emit an optical signal with an i +1 th pulse width, collecting the optical signal received by the photoelectric detector at an i +1 th sampling frequency, simultaneously determining i +1 th test data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an i +1 th test interval based on the i +1 th test data until the detection precision of the breakpoint position of the optical fiber meets preset precision;
wherein i is each positive integer not less than 1 in turn; when i is equal to 2, the pulse width of the ith driving signal is smaller than that of the first driving signal, and when i is larger than 2, the pulse width of the (i + 1) th driving signal is smaller than that of the ith driving signal.
Optionally, the determining, based on the optical signal transmitted by the optical transceiver component and the received optical signal, ith detection data of the optical fiber to be detected includes:
and for any test point in the M test points, determining the detection data of the test point based on the optical signals transmitted by the optical transceiver element and the received optical signals for N times, wherein the detection data of the M test points form the ith detection data of the optical fiber to be tested.
A fiber break point detection system comprising: the optical fiber breakpoint detection device comprises an optical fiber breakpoint detection device and a control platform, wherein the optical fiber breakpoint detection device is any one of the optical fiber breakpoint detection devices, and the control platform is used for sending a control instruction to the optical fiber breakpoint detection device and receiving data detected by the optical fiber breakpoint detection device.
Optionally, the control platform includes a control end, and the control end is configured to display an operation interface of the optical fiber breakpoint detection device, so that a user can send a control instruction to the optical fiber breakpoint detection device through the operation interface.
Optionally, the control platform further includes a cloud server, an operation interface of the optical fiber breakpoint detection device is stored in the cloud server, and the control end acquires the operation interface of the optical fiber breakpoint detection device through communication with the cloud server to display the operation interface.
Optionally, the control end includes at least one of a switch and a mobile electronic device;
the optical fiber breakpoint detection device is communicated with the switch through an I2C interface and communicated with the mobile electronic equipment through a Bluetooth communication module.
Optionally, if the control end includes a switch, the optical fiber breakpoint detection device is electrically connected to the switch through an energization interface, so as to obtain a power supply signal through the switch.
Optionally, the control end is further configured to display detection data sent by the optical fiber breakpoint detection device.
An optical fiber breakpoint detection method is applied to any one of the optical fiber breakpoint detection devices, and the method includes:
acquiring a control instruction of a control platform through a communication element, responding to the control instruction of the control platform, and controlling the laser driving element to send a driving signal to the light receiving and transmitting element to enable the light receiving and transmitting element to transmit a light signal;
determining the detection data of the optical fiber to be detected based on the optical signal transmitted by the optical transceiver component and the received optical signal;
and sending the detection data of the optical fiber to be detected to the control platform through a communication element.
Optionally, the controlling the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal including:
and responding to a control instruction of a control platform, controlling the laser driving element to send a driving signal to the light receiving and transmitting element, so that the light receiving and transmitting element transmits a light signal with a preset pulse width, and simultaneously collecting the light signal received by the light receiving and transmitting element at a preset sampling frequency.
Optionally, the controlling the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal including:
responding to a control instruction of the control platform, and starting an optical fiber breakpoint detection function;
determining M test points in a region to be tested of an optical fiber to be tested, controlling the laser driving element to send a first driving signal to the optical transceiver element for any one test point in the M test points, enabling the optical transceiver element to emit an optical signal with a first pulse width, collecting the optical signal received by the photoelectric detector at a first sampling frequency, simultaneously obtaining ith detection data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an ith detection interval based on the ith detection data;
determining K test points in an ith test interval, sending an i +1 th driving signal to the optical transceiver element for any test point in the K test points, enabling the pulse laser to emit an optical signal with an i +1 th pulse width, collecting the optical signal received by the photoelectric detector at an i +1 th sampling frequency, simultaneously determining i +1 th test data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an i +1 th test interval based on the i +1 th test data until the detection precision of the breakpoint position of the optical fiber meets preset precision;
wherein i is each positive integer not less than 1 in turn; when i is equal to 2, the pulse width of the ith driving signal is smaller than that of the first driving signal, and when i is larger than 2, the pulse width of the (i + 1) th driving signal is smaller than that of the ith driving signal.
In the optical fiber breakpoint detection device that this application embodiment provided, including light transceiver element, laser drive component, control element and communication element, wherein, communication element is used for realizing control element with control platform's communication, so that control element not only can receive control platform sends control command and response control platform's control command, control laser drive component gives light transceiver element sends drive signal, makes light transceiver element sends optical signal and receives the optical signal that the optic fibre that awaits measuring returns to the optic fibre that awaits measuring, can also be based on it the optical signal and the received optical signal that light transceiver element launched confirm the optic fibre detected data that awaits measuring, send for control platform.
Therefore, the optical fiber breakpoint detection device provided by the embodiment of the application can communicate with the control platform, so that the optical fiber breakpoint detection device can be integrated into the existing optical fiber communication or optical fiber sensing system to realize large-scale real-time online communication.
Moreover, the optical fiber breakpoint detection device provided by the embodiment of the application receives the control instruction of the control platform and returns the detection data to the control platform through the communication element, so that the optical fiber breakpoint detection device can automatically detect the optical fiber breakpoint fault under the control of the control platform, does not need to be manually operated by an operator, and is quick, simple, convenient, time-saving, labor-saving and low in cost.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an optical fiber breakpoint detection apparatus according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an optical fiber breakpoint detection apparatus according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an optical fiber breakpoint detection apparatus according to another embodiment of the present application;
FIG. 4 is a schematic structural diagram of an optical fiber breakpoint detection apparatus according to another embodiment of the present application;
FIG. 5 is a schematic structural diagram of a fiber break point detection system according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a fiber break point detection system according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a fiber break point detection system according to another embodiment of the present application;
fig. 8 is a flowchart illustrating a method for detecting a break point of an optical fiber according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited to the specific embodiments disclosed below.
As described in the background section, how to quickly, inexpensively, and easily locate a cable fault is a problem that most cable maintenance units are expected to solve.
The inventor researches and discovers that the existing OTDR (Optical time domain Reflectometer) technology mainly has two solutions when solving the problem of detecting the Optical cable breakpoint: one is an OTDR meter; the other is an on-line optical cable monitoring system based on OTDR technology.
However, the two schemes still have some problems and cannot meet the current market demand of mass optical cable monitoring. Particularly, the two schemes have high cost, and the price ranges from thousands to hundreds of thousands according to different parameters such as the monitored distance, the monitored precision and the like, so that large-scale real-time online monitoring is difficult to realize; moreover, the two schemes have large volumes, and both the OTDR instrument and the solution of the on-line optical cable monitoring system based on the OTDR technology are difficult to be integrated into the existing optical fiber communication or optical fiber sensing system, so that both the OTDR instrument and the solution of the on-line optical cable monitoring system based on the OTDR technology cannot realize large-scale real-time on-line monitoring, and only measurement can be performed after an optical fiber fault or real-time monitoring of a heavy-point line is performed; in addition, the two schemes have high power consumption, both the OTDR instrument and the solution of the on-line optical cable monitoring system based on the OTDR technology have high power consumption, and if the two schemes are used for monitoring all optical cables in real time, the maintenance cost caused by only the electricity charge is very large, and the two schemes are difficult to be widely applied.
Based on this, the embodiments of the present application provide an optical fiber breakpoint detection device, an optical fiber breakpoint detection system, and an optical fiber breakpoint detection method, so as to achieve fast, low-cost, and simple positioning of an optical cable fault.
As shown in fig. 1, an optical fiber breakpoint detection apparatus 100 provided in the embodiment of the present application includes: the optical fiber testing device comprises an optical transceiver element 10, a laser driving element 20, a control element 30 and a communication element 40, wherein the optical transceiver element 10 is used for transmitting an optical signal to an optical fiber to be tested and receiving an optical signal returned by the optical fiber to be tested; the control element 30 is configured to respond to a control instruction of the control platform, control the laser driving element 20 to send a driving signal to the optical transceiver element 10, so that the optical transceiver element 10 emits an optical signal, and determine optical fiber detection data to be detected based on the optical signal emitted by the optical transceiver element 10 and the received optical signal; the communication component 40 is configured to implement communication between the control component 30 and the control platform, so that the control component 30 can receive a control instruction sent by the control platform and send detection data to the control platform.
It should be noted that, in this embodiment of the present application, the laser driving element is mainly used to generate a driving pulse signal, and the control element controls the laser driving element to send a driving signal to the optical transceiver element, so that the optical transceiver element sends an optical signal to the optical fiber to be detected, where a pulse width of the driving pulse signal is related to a specific scene of optical fiber detection, and the wider a pulse width of the driving pulse signal is, the longer a detection distance is, but a detection blind area is also larger, optionally, in an embodiment of the present application, a range of a pulse width of the driving pulse signal is 1us to 10us, including an end point value, and may be 1 us.
The optical fiber breakpoint detection device provided by the embodiment of the application can communicate with a control platform, so that the optical fiber breakpoint detection device can be integrated into the existing optical fiber communication or optical fiber sensing system to realize large-scale real-time online communication.
Moreover, the optical fiber breakpoint detection device provided by the embodiment of the application receives the control instruction of the control platform and returns the detection data to the control platform through the communication element, so that the optical fiber breakpoint detection device can automatically detect the optical fiber breakpoint fault under the control of the control platform, does not need to be manually operated by an operator, and is quick, simple, convenient, time-saving, labor-saving and low in cost.
On the basis of the above embodiments, in an embodiment of the present application, as shown in fig. 2, the optical transceiver component 10 includes: pulse laser 11, photoelectric detector 12 and coupler 13, wherein, coupler 13 is located pulse laser 11 with between the optic fibre that awaits measuring and between photoelectric detector 12 and the optic fibre that awaits measuring, be used for with the optical signal transmission of pulse laser 11 transmission is for the optic fibre that awaits measuring to with the optical signal transmission of the optic fibre output that awaits measuring photoelectric detector 12, so that light transceiver component can be to the optic fibre transmission optical signal that awaits measuring, and receive the optical signal of the optic fibre output that awaits measuring, guarantee light transceiver component and the optical communication between the optic fibre that awaits measuring.
Optionally, on the basis of the above embodiments, in an embodiment of the present application, the pulsed laser is configured to emit a laser pulse signal, and a wavelength of the laser pulse signal may be selected from wavelengths commonly used for communication, such as 1310nm, 1490nm, 1550nm, and the like. Specifically, under the conditions of short distance and low cost of the optical fiber to be measured, a laser pulse signal with a wavelength of 1310mm is generally adopted; under the condition of longer distance of the optical fiber to be measured, a laser pulse signal with the wavelength of 1550nm is generally adopted; if on-line real-time testing and integration into the existing communication system are required, a laser pulse signal with a wavelength of 1625nm is usually used, and optionally, in an embodiment of the present application, the laser pulse signal uses an optical signal with a wavelength of 1550nm, but the present application does not limit this, as the case may be.
It should be noted that, in the above embodiment, the photodetector is configured to receive a laser pulse signal, convert a light power signal received by the laser pulse signal into an electrical signal, and send the electrical signal to the control element, where a wavelength of the light signal received by the photodetector corresponds to a wavelength of the light signal emitted by the pulse laser.
On the basis of the above embodiments, in an embodiment of the present application, the pulse laser, the photodetector, and the coupler are packaged into an integral structure, so as to reduce the volume of the optical transceiver component, which is favorable for reducing the volume of the optical fiber breakpoint detection device.
Optionally, on the basis of the foregoing embodiments, in an embodiment of the present application, the pulse laser, the photoelectric detector, and the coupler in the optical transceiver component are packaged by using a standard SFP (Small Form-Factor Pluggable optical module), but this is not limited in this application, and in other embodiments of the present application, the pulse laser, the photoelectric detector, and the coupler in the optical transceiver component may further use an XFP (10Gigabit Small Form Factor plug, optical transceiver), a QSFP (Quad Small Form-Factor plug, Small Form-Factor Pluggable), a CFP (C m-Factor plug, 100G Pluggable optical module), a CFP2, a CFP4, and a CFP8, which are not limited in this application, depending on the situation. The CFP2, the CFP4, and the CFP8 are new packages defined on the basis of the CFP optical module, and the size of the CFP optical module is further reduced.
On the basis of the above embodiments, in an embodiment of the present application, as shown in fig. 3, the optical fiber breakpoint detection apparatus 100 further includes: a logarithmic amplification element 50 located between the photodetector 12 and the control element 30, the logarithmic amplification element 50 being configured to amplify the signal output by the photodetector 12 to a range that can be received by the control element 30.
Optionally, in an embodiment of the present application, the amplification factor of the logarithmic amplifier is amplified according to a set ratio, so that the control element may perform an inverse operation to determine the optical signal received by the photodetector.
On the basis of the above embodiments, in an embodiment of the present application, the detection data includes a fiber break point position, a pulse width of an optical signal transmitted by the optical transceiver element, and a sampling interval of the control element.
Specifically, when the optical fiber breakpoint detection device specifically works, the control element controls the laser driving element to send a driving pulse signal with a corresponding pulse width to the optical transceiver element according to a set pulse width, so that the pulse width of the optical signal transmitted by the optical transceiver element corresponds to the pulse width set by the control element, the intensity of the optical signal passing through the logarithmic amplification element is read, and the position of the optical fiber breakpoint can be calculated according to the change of the intensity of the received optical signal and the time interval between the received optical signals.
On the basis of the above embodiments, in an embodiment of the present application, as shown in fig. 4, the optical fiber breakpoint detection apparatus 100 further includes a storage element 60, where the storage element 60 is used to store the fiber breakpoint position, so that when the detected fiber breakpoint position needs to be queried later, data can also be queried in the storage element. Optionally, the storage element is a register, but the storage element is not limited thereto in this application, as the case may be.
On the basis of any of the above embodiments, in an embodiment of the present application, the communication element includes at least one of an I2C interface and a bluetooth communication module, which is not limited in this application, and it is only required to ensure that the communication element can implement communication between the control element and the control platform.
Optionally, on the basis of the above embodiment, in an embodiment of the present application, the control platform includes a switch, the control element communicates with the switch through an I2C interface, the control platform includes a mobile electronic device, and the control element communicates with the mobile electronic device through a bluetooth communication module.
It should be noted that, since some SFP optical modules have metal housings, which may shield the communication signals of the bluetooth communication module, in an embodiment of the present application, on the basis of the above embodiments, if the communication component includes a bluetooth communication module, the bluetooth communication module is located at the idle transmitting-side optical port of the SFP optical module, so as to prevent the communication signals of the bluetooth communication module from being shielded.
On the basis of any of the foregoing embodiments, in an embodiment of the present application, the optical fiber breakpoint detection apparatus supports manual measurement of an optical fiber breakpoint position, that is, in the embodiment of the present application, a network manager sets parameters such as a pulse width and a pulse intensity of an emitted optical signal, a received optical power probing time period, a sampling average number of times, and a maximum measurement distance through the control platform, specifically, in the embodiment of the present application, the control element is configured to control the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits the optical signal, and when determining optical fiber detection data to be detected, based on the optical signal emitted by the optical transceiver element and the received optical signal, the control element is specifically configured to:
and responding to a control instruction of a control platform, controlling the laser driving element to send a driving signal to the optical transceiving element, enabling the optical transceiving element to transmit an optical signal with a preset pulse width, simultaneously collecting the optical signal received by the optical transceiving element at a preset sampling frequency, and determining the detection data of the optical fiber to be detected based on the optical signal transmitted by the optical transceiving element and the received optical signal.
In another embodiment of the present application, the optical fiber breakpoint detection apparatus supports automatic measurement of a fiber breakpoint position, and specifically, in this embodiment of the present application, the control element is configured to control the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal, and determine, based on the optical signal emitted by the optical transceiver element and the received optical signal, that the optical fiber detection data to be detected is specifically used for:
the control element is used for responding to a control instruction of the control platform and starting an optical fiber breakpoint detection function;
in the optical fiber breakpoint detection process, the control element is specifically configured to:
determining M test points in a region to be tested of an optical fiber to be tested, controlling the laser driving element to send a first driving signal to the optical transceiver element for any one test point in the M test points, enabling the optical transceiver element to emit an optical signal with a first pulse width, collecting the optical signal received by the photoelectric detector at a first sampling frequency, simultaneously obtaining ith detection data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an ith detection interval based on the ith detection data;
determining K test points in an ith test interval, sending an i +1 th driving signal to the optical transceiver element for any test point in the K test points, enabling the pulse laser to emit an optical signal with an i +1 th pulse width, collecting the optical signal received by the photoelectric detector at an i +1 th sampling frequency, simultaneously determining i +1 th test data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an i +1 th test interval based on the i +1 th test data until the detection precision of the breakpoint position of the optical fiber meets preset precision;
m, K are positive integers greater than 1, i are positive integers not less than 1 in sequence; when i is equal to 2, the pulse width of the ith driving signal is smaller than that of the first driving signal, and when i is larger than 2, the pulse width of the (i + 1) th driving signal is smaller than that of the ith driving signal. M and K may be equal or different, and this is not limited in this application, as the case may be.
In an embodiment of the present application, based on the optical signal emitted by the optical transceiver component and the received optical signal, determining ith detection data of the optical fiber under test includes: and for any test point in the M test points, determining the detection data of the test point based on the optical signals transmitted by the optical transceiver element and the received optical signals for N times, wherein the detection data of the M test points form the ith detection data of the optical fiber to be tested.
It should be noted that, on the basis of the foregoing embodiments, in an embodiment of the present application, when an optical signal is transmitted in an optical fiber, the optical signal is easily interfered by the outside, so that an error occurs in detected data, and since the speed of the optical signal is fast, the detected data also occurs in an error, therefore, the optical fiber breakpoint detection apparatus provided in the embodiment of the present application determines the detected data of a test point by performing N times of detection on any test point among M test points, obtaining the optical signal emitted by the optical transceiver element and the received optical signal N times, and obtaining an average value of the detected data of the test point N times, so as to reduce the error of the detected data, so that the detected data is more accurate.
The following describes, with reference to a specific embodiment, a working process of automatically detecting a fiber break point position of the optical fiber break point detection apparatus provided in the embodiment of the present application.
It should be noted that, in the embodiment of the present application, the control instruction of the control platform is only used to start the optical fiber breakpoint detection function of the optical fiber breakpoint detection apparatus, and is not used to control information such as the pulse signal width and intensity, the time of the received optical power signal, and the sampling average number of times that the optical fiber breakpoint detection apparatus sends the pulse signal.
Optionally, in an embodiment of the present application, the first pulse width W is 1us, the sampling interval T is 1us, the maximum measurement distance L is 20Km, the corresponding number of measurement points is m 10, and the average number of times n is 20, specifically, in the embodiment of the present application, the control element is specifically configured to, when determining the optical fiber breakpoint detection position:
firstly, coarsely scanning m1 measurement points by using initial setting parameters, starting laser pulses, collecting and recording received optical power data according to sampling intervals, and repeating for n1 times, wherein the initial setting parameters comprise: the laser pulse width W1 is 1us, the sampling interval T1 is 1us, the maximum measurement distance L1 is 20Km, the corresponding number of measurement points is m1 is 10, and the average number of times n1 is 20;
accumulating and averaging n1 groups of obtained optical power data to obtain a group of averaged received optical power data P1[ m ];
comparing the optical power between adjacent measuring points in m1 measuring points, determining the region between the two measuring points as a first breakpoint interval when the difference is more than 10dB and the rear optical power is < -40 dBm;
selecting m2 measurement points in a first breakpoint interval, and performing further fine scanning by using a light pulse width of 0.1us, a sampling interval of 0.1us and an average number n2 of 50 times;
comparing the optical power between adjacent measuring points in m2 measuring points in the first breakpoint interval, determining the region between the two measuring points as a second breakpoint interval when the difference is more than 10dB and the rear optical power is less than-40 dBm;
m3 measuring points are selected in the second breakpoint interval, and further fine scanning is carried out by adopting the optical pulse width of 0.1us, the sampling interval of 0.1us and the average number of times n3 of 50 times;
comparing the optical power between adjacent measuring points in m3 measuring points in the second breakpoint interval, determining the region between the two measuring points as a third breakpoint interval when the difference is more than 10dB and the rear optical power is less than-40 dBm;
and analogizing until the distance between the breakpoint intervals is obtained as the preset distance, and storing the distance in the storage element so as to control the breakpoint diagnosis precision within the preset distance range. Optionally, the preset distance has a value range of 15m to 25m, including end points. Specifically, in an embodiment of the present application, the preset distance is 20m, but the present application does not limit this, as the case may be.
It should be noted that, in the above process, the number of the measurement points in the breakpoint interval, such as the first breakpoint interval, the second breakpoint interval, etc., depends on the distance of the breakpoint interval and the sampling interval, when sampling in the breakpoint interval based on the sampling interval, if at least 10 measurement points can be collected, 10 measurement points are selected from the measurement points as the measurement points in the breakpoint interval, and if 10 measurement points cannot be collected, all the measurement points that can be collected are taken as the measurement points in the breakpoint interval.
Therefore, in the embodiment of the application, the optical fiber breakpoint detection device is used for detecting the full range of the region to be detected of the optical fiber to be detected so as to reduce the interval of the position of the optical fiber breakpoint; and detecting the interval of the optical fiber breakpoint position by using the optical fiber breakpoint detection device until the detection precision of the optical fiber breakpoint position meets the preset precision, namely accurately positioning the optical fiber breakpoint position.
In another embodiment of the present application, the optical fiber breakpoint detection device may also support both manual measurement and automatic measurement, so that a user may select the breakpoint detection device according to his or her own needs.
To sum up, the optical fiber breakpoint detection device provided by the embodiment of the application can communicate with a control platform, so that the optical fiber breakpoint detection device can be integrated into the existing optical fiber communication or optical fiber sensing system to realize large-scale real-time online communication.
Moreover, the optical fiber breakpoint detection device provided by the embodiment of the application receives the control instruction of the control platform and returns the detection data to the control platform through the communication element, so that the optical fiber breakpoint detection device can automatically detect the optical fiber breakpoint fault under the control of the control platform, does not need to be manually operated by an operator, and is quick, simple, convenient, time-saving, labor-saving and low in cost.
It should be noted that, in the embodiment of the present application, when the optical fiber breakpoint detection device is used, power is supplied through an SFP backplane interface, a power supply element does not need to be set, a control command is obtained through communication between the communication element and a control platform, and an input element does not need to be additionally set, so that the size of the optical fiber breakpoint detection device is greatly reduced, and the optical fiber breakpoint detection device is convenient to carry.
Moreover, the optical fiber breakpoint detection device provided by the embodiment of the application sends the detection data to the control platform through the communication element, and displays the detection data on the control platform, so that the optical fiber breakpoint detection device does not need to be provided with a display element, and the size is further reduced.
It should be noted that, because the optical fiber breakpoint detection device reduces the display element, the input element and the power supply element, the optical fiber breakpoint detection device not only can reduce the volume, which is one tenth of the volume of the current OTDR instrument, but also can greatly reduce the cost and the power consumption, the typical power consumption of the optical fiber breakpoint detection device is only 0.5W, which is less than 1W, and the cost is one tenth of the cost of the current OTDR instrument.
Correspondingly, the embodiment of the application further provides an optical fiber breakpoint detection system comprising the optical fiber breakpoint detection device provided by any one of the above embodiments.
As shown in fig. 5, the optical fiber breakpoint detection system provided in the embodiment of the present application includes: the optical fiber breakpoint detection device 100 and the control platform 200 are provided, where the optical fiber breakpoint detection device 100 is the optical fiber breakpoint detection device 100 provided in any of the above embodiments, and the control platform 200 is configured to send a control instruction to the optical fiber breakpoint detection device 100 and receive data detected by the optical fiber breakpoint detection device 100, so that the control platform controls the optical fiber breakpoint detection device to perform real-time detection on an optical fiber to be detected, and determines a position of an optical fiber breakpoint according to the detection data of the optical fiber breakpoint detection device.
It should be noted that, on the basis of the above embodiments, in this embodiment of the present application, the communication element in the optical fiber breakpoint detection device is connected to the control platform, so as to implement communication between the optical fiber breakpoint detection device and the control platform through the communication element, that is, the control platform sends a control instruction to the optical fiber breakpoint detection device through the communication element, and receives data detected by the optical fiber breakpoint detection device.
On the basis of the above embodiments, in an embodiment of the present application, as shown in fig. 6, the control platform 200 includes a control end 201, where the control end 201 is configured to display an operation interface of the optical fiber breakpoint detection apparatus 100, so that a user can send a control instruction to the optical fiber breakpoint detection apparatus through the operation interface.
On the basis of the above embodiments, in an embodiment of the present application, as shown in fig. 7, the control platform 200 further includes a cloud server 202, an operation interface of the optical fiber breakpoint detection device 100 is stored on the cloud server 202, and the control end 201 acquires the operation interface of the optical fiber breakpoint detection device through communication with the cloud server 202 to display the operation interface, so that the operation interface of the control end can be retrieved through the cloud server even if the operation interface of the control end is lost, so as to reduce the probability of data loss.
It should be noted that, on the basis of the above embodiments, in an embodiment of the present application, the control end communicates with the cloud server through a wire, but the present application does not limit this, and the present application is not limited to this specifically.
On the basis of the foregoing embodiment, in an embodiment of the present application, the control end includes at least one of a switch and a mobile electronic device, the optical fiber breakpoint detection device communicates with the switch through an I2C interface, and communicates with the mobile electronic device through a bluetooth communication module, optionally, the optical fiber breakpoint detection device is connected with the smartphone end through the bluetooth communication module, so as to utilize the smartphone end to display the operation interface, and can utilize an app or a wechat applet in the smartphone end to input a control instruction, but the present application does not limit this.
It should be noted that, on the basis of the above embodiment, the control end may be used to display an operation interface and input a control instruction, so that the optical fiber breakpoint detection apparatus reduces display elements and input elements, and compared with a conventional OTDR instrument, the size of the optical fiber breakpoint detection apparatus is greatly reduced, so as to reduce power consumption and cost of the optical fiber breakpoint detection apparatus.
Therefore, on the basis of the above embodiments, in an embodiment of the present application, if the control end includes a switch, the optical fiber breakpoint detection apparatus is electrically connected to the switch through a power-on interface to obtain a power supply signal through the switch, specifically, the power consumption of the optical fiber breakpoint detection apparatus provided in the present application is only 0.5 w.
It should be noted that, on the basis of the above embodiments, the optical fiber breakpoint detection apparatus can provide an electrical signal by the switch, so that the optical fiber breakpoint detection apparatus reduces power supply elements, and further reduces the cost, volume, and power consumption of the optical fiber breakpoint detection apparatus.
On the basis of any one of the above embodiments, in an embodiment of the present application, the control end is further configured to display the detection data sent by the optical fiber breakpoint detection device, specifically, in an embodiment of the present application, the control end may directly display the detection data in a form of numbers and/or distribution curves, so that an operator can more intuitively understand the detection data and accurately position the optical fiber breakpoint.
To sum up, in this application embodiment, optic fibre breakpoint detection device through the circular telegram interface with the switch electricity is connected, in order to pass through the switch obtains power supply signal to communicate through communication element and control platform, with the operation interface through control platform obtains control command and shows the detection data through control platform's display element, thereby makes optic fibre breakpoint detection device's volume is less, easily carries to the low power dissipation, and the cost is lower.
Therefore, the optical fiber breakpoint detection system provided by the embodiment of the application comprises: optical fiber breakpoint detection device and control platform, when specifically using, through control platform to optical fiber breakpoint detection device sends control command, makes optical fiber breakpoint detection device carries out real-time detection to the optic fibre that awaits measuring, confirms the optic fibre detected data that awaits measuring, send for control platform shows, in order to utilize optical fiber breakpoint detection device with control platform's combination operation for the operation that awaits measuring the optic fibre detected is simpler and easy, then convenient at any time the control platform detects the condition of the optic fibre that awaits measuring in real time to realize quick, low-cost, simple and convenient location optical cable trouble.
In addition, an embodiment of the present application further provides an optical fiber breakpoint detection method applied to the optical fiber breakpoint detection apparatus provided in any of the above embodiments, as shown in fig. 8, the method includes:
s10: the control instruction of the control platform is obtained through the communication element, the control instruction of the control platform is responded, the laser driving element is controlled to send a driving signal to the light receiving and transmitting element, and the light receiving and transmitting element emits a light signal.
S20: and determining the detection data of the optical fiber to be detected based on the optical signal transmitted by the optical transceiver element and the received optical signal.
S30: and sending the detection data of the optical fiber to be detected to the control platform through a communication element.
On the basis of the foregoing embodiment, in an embodiment of the present application, the optical fiber breakpoint detection apparatus performs optical fiber breakpoint detection in a manual measurement manner, and in this embodiment, the laser driving element is controlled to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal including:
and responding to a control instruction of a control platform, controlling the laser driving element to send a driving signal to the light receiving and transmitting element, so that the light receiving and transmitting element transmits a light signal with a preset pulse width, and simultaneously collecting the light signal received by the light receiving and transmitting element at a preset sampling frequency.
It should be noted that, in this application embodiment, predetermine pulse width with predetermine sampling frequency does parameter among the control command, among the optical fiber breakpoint detection device control element is through responding control command, control laser drive element sends corresponding drive pulse who predetermines pulse width and gives light transceiver element, control light transceiver element is to the optical signal of the optical fiber transmission of awaiting measuring predetermine pulse width to in order to predetermine sampling frequency collection light transceiver element received light signal.
In another embodiment of the present application, the optical fiber breakpoint detection apparatus performs optical fiber breakpoint detection in an automatic measurement manner, and in this embodiment, the controlling the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal including:
responding to a control instruction of the control platform, and starting an optical fiber breakpoint detection function;
determining M test points in a region to be tested of an optical fiber to be tested, controlling the laser driving element to send a first driving signal to the optical transceiver element for any one test point in the M test points, enabling the optical transceiver element to emit an optical signal with a first pulse width, collecting the optical signal received by the photoelectric detector at a first sampling frequency, simultaneously obtaining ith detection data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an ith detection interval based on the ith detection data;
determining K test points in an ith test interval, sending an i +1 th driving signal to the optical transceiver element for any test point in the K test points, enabling the pulse laser to emit an optical signal with an i +1 th pulse width, collecting the optical signal received by the photoelectric detector at an i +1 th sampling frequency, simultaneously determining i +1 th test data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an i +1 th test interval based on the i +1 th test data until the detection precision of the breakpoint position of the optical fiber meets preset precision;
m, K are positive integers greater than 1, i are positive integers not less than 1 in sequence; when i is equal to 2, the pulse width of the ith driving signal is smaller than that of the first driving signal, and when i is larger than 2, the pulse width of the (i + 1) th driving signal is smaller than that of the ith driving signal. M and K may be equal or different, and this is not limited in this application, as the case may be.
Therefore, in the optical fiber breakpoint detection method provided by the embodiment of the application, the optical fiber breakpoint detection device is used for carrying out full-range detection on the region to be detected of the optical fiber to be detected so as to reduce the interval of the position of the optical fiber breakpoint; and detecting the interval of the optical fiber breakpoint position by using the optical fiber breakpoint detection device until the detection precision of the optical fiber breakpoint position meets the preset precision, namely accurately positioning the optical fiber breakpoint position.
To sum up, the optic fibre breakpoint detection method that this application embodiment provided, through communication element among the optic fibre breakpoint detection device obtains control platform's control command, and the response control platform's control command, control the laser drive component gives light transceiver component sends drive signal, makes light transceiver component is to the optic fibre firing signal that awaits measuring and receive optical signal, based on light signal and the received optical signal that light transceiver component launched, the detection data of the optic fibre that confirms awaiting measuring sends control platform to realize quick, low-cost, simple and convenient location optical cable trouble.
In the description, each part is described in a progressive manner, each part is emphasized to be different from other parts, and the same and similar parts among the parts are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (19)
1. An optical fiber breakpoint detection device, comprising: a light receiving and transmitting element, a laser driving element, a control element and a communication element, wherein,
the optical transceiver component is used for transmitting an optical signal to the optical fiber to be tested and receiving the optical signal returned by the optical fiber to be tested;
the control element is used for responding to a control instruction of the control platform, controlling the laser driving element to send a driving signal to the optical transceiver element so that the optical transceiver element emits an optical signal, and determining optical fiber detection data to be detected based on the optical signal emitted by the optical transceiver element and the received optical signal;
the communication element is used for realizing communication between the control element and the control platform, so that the control element can receive a control instruction sent by the control platform and send detection data to the control platform.
2. The optical fiber breakpoint detection device according to claim 1, wherein the optical transceiver element includes: the device comprises a pulse laser, a photoelectric detector and a coupler; the coupler is used for transmitting the optical signal emitted by the pulse laser to the optical fiber to be detected and transmitting the optical signal output by the optical fiber to be detected to the photoelectric detector.
3. The optical fiber breakpoint detection device according to claim 2, wherein the pulse laser, the photodetector and the coupler are packaged as an integral structure.
4. The optical fiber breakpoint detection device according to claim 1, further comprising:
the logarithmic amplification element is positioned between the photoelectric detector and the control element and is used for amplifying the signal output by the photoelectric detector to a range which can be received by the control element.
5. The apparatus according to claim 1, wherein the detection data includes a fiber break point position, a pulse width of the optical signal transmitted from the optical transceiver component, and a sampling interval of the control component.
6. The fiber break point detection device of claim 5, further comprising a storage element for storing the fiber break point location.
7. The fiber break point detection device according to claim 1, wherein the communication element comprises at least one of an I2C interface and a bluetooth communication module.
8. The optical fiber breakpoint detection device according to claim 1, wherein the control element is configured to control the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal, and the control element is specifically configured to, when determining the detection data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal:
and responding to a control instruction of a control platform, controlling the laser driving element to send a driving signal to the optical transceiving element, enabling the optical transceiving element to transmit an optical signal with a preset pulse width, simultaneously collecting the optical signal received by the optical transceiving element at a preset sampling frequency, and determining the detection data of the optical fiber to be detected based on the optical signal transmitted by the optical transceiving element and the received optical signal.
9. The optical fiber breakpoint detection device according to claim 1, wherein the control element is configured to control the laser driving element to send a driving signal to the optical transceiver element in response to a control instruction of the control platform, so that the optical transceiver element emits an optical signal, and determine, based on the optical signal emitted by the optical transceiver element and the received optical signal, that the optical fiber detection data to be tested is specifically used for:
the control element is used for responding to a control instruction of the control platform and starting an optical fiber breakpoint detection function;
in the optical fiber breakpoint detection process, the control element is specifically configured to:
determining M test points in a region to be tested of an optical fiber to be tested, controlling the laser driving element to send a first driving signal to the optical transceiver element for any one test point in the M test points, enabling the optical transceiver element to emit an optical signal with a first pulse width, collecting the optical signal received by the photoelectric detector at a first sampling frequency, simultaneously obtaining ith detection data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an ith detection interval based on the ith detection data;
determining K test points in an ith test interval, sending an i +1 th driving signal to the optical transceiver element for any test point in the K test points, enabling the pulse laser to emit an optical signal with an i +1 th pulse width, collecting the optical signal received by the photoelectric detector at an i +1 th sampling frequency, simultaneously determining i +1 th test data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an i +1 th test interval based on the i +1 th test data until the detection precision of the breakpoint position of the optical fiber meets preset precision;
wherein i is each positive integer not less than 1 in turn; when i is equal to 2, the pulse width of the ith driving signal is smaller than that of the first driving signal, and when i is larger than 2, the pulse width of the (i + 1) th driving signal is smaller than that of the ith driving signal.
10. The apparatus according to claim 9, wherein the determining the ith detection data of the optical fiber under test based on the optical signal transmitted by the optical transceiver component and the received optical signal comprises:
and for any test point in the M test points, determining the detection data of the test point based on the optical signals transmitted by the optical transceiver element and the received optical signals for N times, wherein the detection data of the M test points form the ith detection data of the optical fiber to be tested.
11. An optical fiber breakpoint detection system, comprising: the optical fiber breakpoint detection device comprises an optical fiber breakpoint detection device and a control platform, wherein the optical fiber breakpoint detection device is the optical fiber breakpoint detection device according to any one of claims 1 to 10, and the control platform is used for sending a control instruction to the optical fiber breakpoint detection device and receiving data detected by the optical fiber breakpoint detection device.
12. The system according to claim 11, wherein the control platform includes a control end, and the control end is configured to display an operation interface of the optical fiber breakpoint detection device, so that a user can send a control instruction to the optical fiber breakpoint detection device through the operation interface.
13. The system according to claim 12, wherein the control platform further includes a cloud server, an operation interface of the optical fiber breakpoint detection device is stored in the cloud server, and the control end acquires the operation interface of the optical fiber breakpoint detection device for displaying through communication with the cloud server.
14. The fiber break point detection system of claim 12, wherein the control end comprises at least one of a switch and a mobile electronic device;
the optical fiber breakpoint detection device is communicated with the switch through an I2C interface and communicated with the mobile electronic equipment through a Bluetooth communication module.
15. The system according to claim 14, wherein if the control end comprises a switch, the fiber break detection device is electrically connected to the switch through a power-on interface to obtain a power supply signal through the switch.
16. The system according to any one of claims 12 to 14, wherein the control terminal is further configured to display the detection data sent by the optical fiber breakpoint detection device.
17. An optical fiber breakpoint detection method applied to the optical fiber breakpoint detection device according to any one of claims 1 to 10, the method comprising:
acquiring a control instruction of a control platform through a communication element, responding to the control instruction of the control platform, and controlling the laser driving element to send a driving signal to the light receiving and transmitting element to enable the light receiving and transmitting element to transmit a light signal;
determining the detection data of the optical fiber to be detected based on the optical signal transmitted by the optical transceiver component and the received optical signal;
and sending the detection data of the optical fiber to be detected to the control platform through a communication element.
18. The detection method according to claim 17, wherein the controlling the laser driving element to send a driving signal to the optical transceiver element in response to a control command of the control platform, so that the optical transceiver element emits an optical signal comprises:
and responding to a control instruction of a control platform, controlling the laser driving element to send a driving signal to the light receiving and transmitting element, so that the light receiving and transmitting element transmits a light signal with a preset pulse width, and simultaneously collecting the light signal received by the light receiving and transmitting element at a preset sampling frequency.
19. The detection method according to claim 17, wherein the controlling the laser driving element to send a driving signal to the optical transceiver element in response to a control command of the control platform, so that the optical transceiver element emits an optical signal comprises:
responding to a control instruction of the control platform, and starting an optical fiber breakpoint detection function;
determining M test points in a region to be tested of an optical fiber to be tested, controlling the laser driving element to send a first driving signal to the optical transceiver element for any one test point in the M test points, enabling the optical transceiver element to emit an optical signal with a first pulse width, collecting the optical signal received by the photoelectric detector at a first sampling frequency, simultaneously obtaining ith detection data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an ith detection interval based on the ith detection data;
determining K test points in an ith test interval, sending an i +1 th driving signal to the optical transceiver element for any test point in the K test points, enabling the pulse laser to emit an optical signal with an i +1 th pulse width, collecting the optical signal received by the photoelectric detector at an i +1 th sampling frequency, simultaneously determining i +1 th test data of the optical fiber to be tested based on the optical signal emitted by the optical transceiver element and the received optical signal, and determining an i +1 th test interval based on the i +1 th test data until the detection precision of the breakpoint position of the optical fiber meets preset precision;
wherein i is each positive integer not less than 1 in turn; when i is equal to 2, the pulse width of the ith driving signal is smaller than that of the first driving signal, and when i is larger than 2, the pulse width of the (i + 1) th driving signal is smaller than that of the ith driving signal.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112491467A (en) * | 2020-10-15 | 2021-03-12 | 国网浙江宁波市鄞州区供电有限公司 | Communication optical fiber fault processing method and device based on robot |
| CN114362813A (en) * | 2022-01-24 | 2022-04-15 | 浙江富春江光电科技有限公司 | Active breakpoint detection optical cable |
| CN117289641A (en) * | 2023-11-27 | 2023-12-26 | 上海孛璞半导体技术有限公司 | Signal synchronous control circuit and wafer test system of optical chip |
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2020
- 2020-06-18 CN CN202010558688.0A patent/CN111726162A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112491467A (en) * | 2020-10-15 | 2021-03-12 | 国网浙江宁波市鄞州区供电有限公司 | Communication optical fiber fault processing method and device based on robot |
| CN112491467B (en) * | 2020-10-15 | 2023-11-28 | 国网浙江宁波市鄞州区供电有限公司 | Communication optical fiber fault processing method and device based on robot |
| CN114362813A (en) * | 2022-01-24 | 2022-04-15 | 浙江富春江光电科技有限公司 | Active breakpoint detection optical cable |
| CN117289641A (en) * | 2023-11-27 | 2023-12-26 | 上海孛璞半导体技术有限公司 | Signal synchronous control circuit and wafer test system of optical chip |
| CN117289641B (en) * | 2023-11-27 | 2024-03-01 | 上海孛璞半导体技术有限公司 | Wafer test system for optical chip |
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