CN114001926A - Optical cable census analyzer and analog signal processing method thereof - Google Patents
Optical cable census analyzer and analog signal processing method thereof Download PDFInfo
- Publication number
- CN114001926A CN114001926A CN202111448006.1A CN202111448006A CN114001926A CN 114001926 A CN114001926 A CN 114001926A CN 202111448006 A CN202111448006 A CN 202111448006A CN 114001926 A CN114001926 A CN 114001926A
- Authority
- CN
- China
- Prior art keywords
- signal
- optical
- optical fiber
- analog signal
- signal processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 77
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims abstract description 38
- 238000012545 processing Methods 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 230000005236 sound signal Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000011835 investigation Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims 3
- 238000000034 method Methods 0.000 description 11
- 238000000253 optical time-domain reflectometry Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
-
- 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
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses an optical cable census analyzer and an analog signal processing method thereof, wherein the optical cable census analyzer comprises an ARM embedded platform, an FPGA platform, an MCU power management module, a built-in light path, an analog signal processing module, an ADC converter, an LCD display screen and a loudspeaker, wherein the ARM embedded platform is connected with the FPGA platform, the light power meter module, a red light source module, the LCD display screen and the loudspeaker; the FPGA platform is connected with the built-in optical path and the analog signal processing module; the built-in optical path is connected with the analog signal processing module. The optical fiber cable length measuring device can complete the searching work of the optical cable with the length of 60km without pulling the optical fiber or damaging the optical fiber, has simple and convenient operation and high efficiency, can distinguish the target optical cable only by knocking the optical cable, is additionally provided with the function of an optical time domain analyzer under the condition of not increasing the hardware cost, can easily measure the length, the loss and the fault point of the optical fiber cable, and forms a test report.
Description
Technical Field
The invention relates to an analyzer, in particular to an optical cable census analyzer and an analog signal processing method thereof.
Background
With the continuous development of communication networks, the policies of optical access, optical cable access, and optical cable exit are coming to the ground, the 4G is coming to the market and the 5G is going to be popularized, so that the optical cable has become the main transmission mode of the communication networks. More and more optical cables are arranged in overhead, pipeline, manhole and other line environments, and how to manage the basic network resources becomes a problem to be solved. In addition, due to the rapid change of urban construction, situations such as machine room moving , line transformation, optical cable rush-repair and the like are continuously emerging, and how to rapidly and effectively transform and rush-repair becomes a problem which needs to be solved urgently by line maintenance personnel. The conventional methods for solving the above problems include: 1) pulling one by one from the starting end along the vine and touching the melon; 2) the method of bending the optical cable by OTDR or accelerating the frozen liquid on the optical cable; 3) a method of radio frequency detection; 4) fiber identifier lookup; 5) red light source detection; these methods, while effective, all suffer from significant drawbacks. Firstly, the pulling method needs to search for places which can not be separated at the binding position and needs to release the binding, so that the precision is very effective, and the time and the labor are consumed; secondly, the optical fiber is damaged to a certain extent by means of OTDR (optical time domain reflectometry) distortion of the optical cable or quick freezing of the instant freezing liquid, and the instant freezing liquid has certain toxicity, pollutes the environment and is harmful to constructors. Thirdly, the radio frequency detection method cannot detect a direct-buried optical cable or an optical cable without a reinforced metal core; fourthly, the optical fiber adapter searching method needs to strip the optical cable, is complex to operate and has certain influence on transmission; and fifthly, a red light source is adopted, the testing distance is short, the route cannot be detected, and great limitation exists. Therefore, developing an optical cable census analyzer and an analog signal processing method thereof becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention provides an optical cable census analyzer and an analog signal processing method thereof to solve the defects.
The above object of the present invention is achieved by the following technical means: an optical cable general survey analyzer comprises an ARM embedded platform, an FPGA platform, an MCU power management module, a built-in light path, an analog signal processing module, an ADC converter, an LCD display screen and a loudspeaker, wherein the ARM embedded platform is connected with the FPGA platform, the light power meter module, a red light source module, the LCD display screen and the loudspeaker; the FPGA platform is connected with the built-in optical path and the analog signal processing module; the built-in optical path is connected with the analog signal processing module; the MCU power management module is connected with the ARM embedded platform, the FPGA platform and the analog signal processing module, provides power for the ARM embedded platform, and manages the electric tubes for the FPGA embedded platform and the analog signal processing module.
The ARM embedded platform is used for completing data analysis and man-machine interaction, the FPGA platform is used for completing data sampling and data processing, and the FPGA platform is connected with a 1550nm DFB laser and an MEMS VOA attenuator and used for controlling the 1550nm DFB laser to enable the 1550nm DFB laser to emit a 2KHZ debugging pulse light signal and controlling the attenuation value of the MEMS VOA attenuator to meet the test requirement. The ARM embedded platform is connected with the optical power meter module and used for completing measurement of optical power; the ARM embedded platform is connected with the red light source module and used for controlling the working state of the red light source.
Further, the built-in optical path utilizes the michael interference principle and is greatly improved. The built-in optical path comprises a 1550nm DFB laser, an APD detector, a 2-in-2 splitter, an MEMS VOA attenuator and a 1-in-2 splitter; the 1550nm DFB laser and the APD detector are connected to the 2-branch 2-splitter, the laser emits 2KHZ debugging pulse light, the 2-branch 2-splitter is used for connecting an output port of the 2-branch 2-splitter with 1km interference optical fiber, the interference optical fiber is connected with an MEMS VOA attenuator in series and then enters the 1-branch 2-splitter, and the attenuation of the VOA is adjusted to 0dB during the general investigation function test; the other output port of the 2-branch 2 splitter is directly connected to the input port 2 of the 1-branch 2 splitter, and the other output port of the 2-branch 2 splitter is converged with light coming out of the interference optical fiber and then enters the tested optical fiber; when the optical fiber to be tested is artificially knocked, light can generate phase change in the optical fiber, the light generating the phase change and original light can generate interference to generate interference fringes, the interference fringes are returned to an APD detector through an optical fiber loop to perform photoelectric conversion, and when the OTDR function is performed, the attenuation value of the VOA is adjusted to be maximum (greater than 40dB attenuation) so as to eliminate the interference of an optical signal on a Rayleigh scattering signal, ensure the effective extraction of the Rayleigh scattering signal and finish the OTDR function measurement.
Furthermore, the analog signal processing module comprises a first-stage amplifying circuit, an integrating circuit, a second-stage amplifying circuit, a mirror current source, a third-stage amplifying circuit, a differential amplifying circuit and an ADC (analog to digital converter) which are sequentially connected, and the ADC is connected with the FPGA platform.
Further, the analog signal processing method of the optical cable census analyzer comprises the following steps: when an optical signal received by the APD detector is converted into an electric signal, the electric signal is input into a first-stage amplifying circuit for signal amplification, the amplified signal is input into an integrating circuit for integration processing, then the integrated signal is sent to a second-stage amplifying circuit for second amplification, the image current source is sent to an image current source after the second-stage amplifying circuit is processed, the electric signal conversion is carried out so as to achieve the purpose of filtering a common-mode signal, the image current source is input into a third-stage amplifying circuit after being output, the signal is amplified for the third time, then the amplified signal is sent to a differential amplifying circuit, a single-end signal is converted into a differential signal, finally the differential signal is sent to an ADC (analog-to-digital converter) for analog-to-digital conversion, the optical signal is converted into an electric analog signal by the whole analog circuit, the electric analog signal is converted into a digital signal, the digital signal is sampled by an FPGA platform and then is subjected to data denoising processing, and finally a useful digital signal is sent to an ARM embedded platform, the ARM embedded platform converts sampled data into spectrum signals through an algorithm to be displayed on an LCD display screen, and converts the spectrum signals into audio signals to be transmitted to a loudspeaker to be played.
The advantages of the invention and the prior art are: the optical cable locating device has the advantages that the optical cable locating device can easily complete the finding work of the optical cable with the length of 60km on the premise that the optical fiber is not required to be pulled and damaged, the operation is simple and convenient, the efficiency is high, and the target optical cable can be distinguished only by knocking the optical cable. The invention is also attached with the traditional OTDR function, can easily complete the measurement and analysis of parameters such as the length, the loss, the attenuation, the event point and the like of the optical cable, and automatically generates a test report, thereby greatly shortening the measurement time of users. The invention is also provided with an optical power meter module which can complete the communication optical power measurement on the line, and the red light source can be used for searching the fault of the short-distance measuring optical fiber so as to make up the fault problem that the OTDR blind area can not be covered.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of the built-in optical path in the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an optical cable census analyzer comprises an ARM embedded platform, an FPGA platform, an MCU power management module, a built-in optical path, an analog signal processing module, an ADC converter, an LCD display screen, and a speaker, wherein the ARM embedded platform is connected to the FPGA platform, the optical power meter module, the red light source module, the LCD display screen, and the speaker; the FPGA platform is connected with the built-in optical path and the analog signal processing module; the built-in optical path is connected with the analog signal processing module; the MCU power management module is connected with the ARM embedded platform, the FPGA platform and the analog signal processing module, provides power for the ARM embedded platform, and manages the electric tubes for the FPGA embedded platform and the analog signal processing module.
The ARM embedded platform is used for completing data analysis and man-machine interaction, the FPGA platform is used for completing data sampling and data processing, and the FPGA platform is connected with a 1550nm DFB laser and an MEMS VOA attenuator and used for controlling the 1550nm DFB laser to enable the 1550nm DFB laser to emit a 2KHZ debugging pulse light signal and controlling the attenuation value of the MEMS VOA attenuator to meet the test requirement. The ARM embedded platform is connected with the optical power meter module and used for completing measurement of optical power; the ARM embedded platform is connected with the red light source module and used for controlling the working state of the red light source.
As shown in fig. 2, the built-in optical path utilizes the michael interference principle and is greatly improved. The built-in optical path comprises a 1550nm DFB laser, an APD detector, a 2-in-2 splitter, an MEMS VOA attenuator and a 1-in-2 splitter; the 1550nm DFB laser and the APD detector are connected to the 2-branch 2-splitter, the laser emits 2KHZ debugging pulse light, the 2-branch 2-splitter is used for connecting an output port of the 2-branch 2-splitter with 1km interference optical fiber, the interference optical fiber is connected with an MEMS VOA attenuator in series and then enters the 1-branch 2-splitter, and the attenuation of the VOA is adjusted to 0dB during the general investigation function test; the other output port of the 2-branch 2 splitter is directly connected to the input port 2 of the 1-branch 2 splitter, and the other output port of the 2-branch 2 splitter is converged with light coming out of the interference optical fiber and then enters the tested optical fiber; when the optical fiber to be tested is knocked manually, the light can generate phase change in the optical fiber, the light generating the phase change and the original light can generate interference, interference fringes are generated, and the interference fringes return to the APD detector through the optical fiber loop to perform photoelectric conversion.
As shown in fig. 1, the analog signal processing module includes a first-stage amplifying circuit, an integrating circuit, a second-stage amplifying circuit, a mirror current source, a third-stage amplifying circuit, a differential amplifying circuit, and an ADC analog-to-digital converter, which are connected in sequence, and the ADC analog-to-digital converter is connected to the FPGA platform.
As shown in fig. 2, the analog signal processing method of the optical cable census analyzer comprises the following steps: when an optical signal received by the APD detector is converted into an electric signal, the electric signal is input into a first-stage amplifying circuit for signal amplification, the amplified signal is input into an integrating circuit for integration processing, then the integrated signal is sent to a second-stage amplifying circuit for second amplification, the image current source is sent to an image current source after the second-stage amplifying circuit is processed, the electric signal conversion is carried out so as to achieve the purpose of filtering a common-mode signal, the image current source is input into a third-stage amplifying circuit after being output, the signal is amplified for the third time, then the amplified signal is sent to a differential amplifying circuit, a single-end signal is converted into a differential signal, finally the differential signal is sent to an ADC (analog-to-digital converter) for analog-to-digital conversion, the optical signal is converted into an electric analog signal by the whole analog circuit, the electric analog signal is converted into a digital signal, the digital signal is sampled by an FPGA platform and then is subjected to data denoising processing, and finally a useful digital signal is sent to an ARM embedded platform, the ARM embedded platform converts sampled data into spectrum signals through an algorithm to be displayed on an LCD display screen, and converts the spectrum signals into audio signals to be transmitted to a loudspeaker to be played.
The invention relates to an optical cable general survey analyzer, which is an intelligent instrument specially designed for the construction and maintenance of an optical cable link in an optical communication system, and is a novel comprehensive instrument custom-made by technical personnel for construction, acceptance and operation and maintenance of optical fiber cables. The optical fiber and cable fault, construction quality, link connection condition and the like can be analyzed by using the OTDR function of the instrument, the optical fiber tracking and searching can be carried out by using the optical cable general-checking function, users can easily search out the target optical fiber by only lightly knocking the optical cable, the instrument can convert knocking information into a frequency spectrum signal and an audio signal, and the target optical fiber can be heard and seen. The optical cable general survey analyzer can completely replace the traditional searching method: the optical cable is searched by a pulling method, a bending method, a radio frequency detection method, an optical fiber adapter method and a red light source searching method, and particularly has an OTDR analysis function, so that fault searching, fault positioning and fault analysis can be carried out on the optical fiber and the optical cable, and a user can know the connection condition of an optical fiber optical path at a glance. The invention also integrates the instrument functions necessary for the assembly of the optical fiber and the optical cable: the optical power meter module, the red light source module, the stable light source module for the instrument is multi-purpose, greatly reduced the use cost of installation and maintenance personnel, alleviateed the burden that the installation and maintenance personnel carried the instrument simultaneously, as long as carry an optical cable general survey analysis appearance just can accomplish all required seekings of installation and maintenance, measurement work.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. An optical cable general survey analyzer which is characterized in that: the system comprises an ARM embedded platform, an FPGA platform, an MCU power management module, a built-in light path, an analog signal processing module, an ADC converter, an LCD display screen and a loudspeaker, wherein the ARM embedded platform is connected with the FPGA platform, an optical power meter module, a red light source module, the LCD display screen and the loudspeaker; the FPGA platform is connected with the built-in optical path and the analog signal processing module; the built-in optical path is connected with the analog signal processing module; and the MCU power management module is connected with the ARM embedded platform, the FPGA platform and the analog signal processing module.
2. The cable screening analyzer of claim 1, wherein: the built-in optical path comprises a 1550nm DFB laser, an APD detector, a 2-in-2 splitter, an MEMS VOA attenuator and a 1-in-2 splitter; the 1550nm DFB laser and the APD detector are connected to a 2-branch 2-splitter, the laser emits 2KHZ debugging pulse light, the 2KHZ debugging pulse light passes through the 2-branch 2-splitter, one output port of the 2-branch 2-splitter is connected with 1km interference optical fiber, the interference optical fiber enters the 1-branch 2-splitter after being connected with an MEMS VOA attenuator in series, and the VOA attenuation is adjusted to 0dB during the general investigation function test; the other output port of the 2-branch 2 splitter is directly connected to the input port 2 of the 1-branch 2 splitter, and the other output port of the 2-branch 2 splitter is converged with light coming out of the interference optical fiber and then enters the tested optical fiber; when the optical fiber to be tested is knocked manually, the light can generate phase change in the optical fiber, the light generating the phase change and the original light can generate interference, interference fringes are generated, and the interference fringes return to the APD detector through the optical fiber loop to perform photoelectric conversion.
3. The cable screening analyzer of claim 1, wherein: the analog signal processing module comprises a first-stage amplifying circuit, an integrating circuit, a second-stage amplifying circuit, a mirror current source, a third-stage amplifying circuit, a differential amplifying circuit and an ADC (analog to digital converter) which are sequentially connected, and the ADC is connected with the FPGA platform.
4. The cable screening analyzer of claim 1, wherein: the analog signal processing method of the optical cable general survey analyzer comprises the following steps: when an optical signal received by the APD detector is converted into an electric signal, the electric signal is input into a first-stage amplifying circuit for signal amplification, the amplified signal is input into an integrating circuit for integration processing, then the integrated signal is sent to a second-stage amplifying circuit for second amplification, the image current source is sent to an image current source after the second-stage amplifying circuit is processed, the electric signal conversion is carried out so as to achieve the purpose of filtering a common-mode signal, the image current source is input into a third-stage amplifying circuit after being output, the signal is amplified for the third time, then the amplified signal is sent to a differential amplifying circuit, a single-end signal is converted into a differential signal, finally the differential signal is sent to an ADC (analog-to-digital converter) for analog-to-digital conversion, the optical signal is converted into an electric analog signal by the whole analog circuit, the electric analog signal is converted into a digital signal, the digital signal is sampled by an FPGA platform and then is subjected to data denoising processing, and finally a useful digital signal is sent to an ARM embedded platform, the ARM embedded platform converts sampled data into spectrum signals through an algorithm to be displayed on an LCD display screen, and converts the spectrum signals into audio signals to be transmitted to a loudspeaker to be played.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111448006.1A CN114001926A (en) | 2021-12-01 | 2021-12-01 | Optical cable census analyzer and analog signal processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111448006.1A CN114001926A (en) | 2021-12-01 | 2021-12-01 | Optical cable census analyzer and analog signal processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114001926A true CN114001926A (en) | 2022-02-01 |
Family
ID=79930983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111448006.1A Pending CN114001926A (en) | 2021-12-01 | 2021-12-01 | Optical cable census analyzer and analog signal processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114001926A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115208468A (en) * | 2022-09-14 | 2022-10-18 | 高勘(广州)技术有限公司 | Method, device and system for determining optical cable routing point and storage medium |
| CN115865188A (en) * | 2023-02-20 | 2023-03-28 | 卓信通信股份有限公司 | Optical cable general survey instrument system, use method thereof and vibrator |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5442434A (en) * | 1993-10-20 | 1995-08-15 | Antel Optronics Inc. | Method for finding and measuring optical features using an optical time domain reflectometer |
| CN103323215A (en) * | 2013-05-20 | 2013-09-25 | 中国电子科技集团公司第四十一研究所 | Device and method for measuring optical time domain reflection |
| CN203399113U (en) * | 2013-05-03 | 2014-01-15 | (株)韩国一诺仪器株式会社 | Optical cable general detection device with information identification function |
| CN203399115U (en) * | 2013-05-03 | 2014-01-15 | (株)韩国一诺仪器株式会社 | Optical cable general detection device with fiber end face detection function |
| CN103532616A (en) * | 2013-09-29 | 2014-01-22 | 中国电子科技集团公司第四十一研究所 | Integrative optical cable fault detection device |
| CN204269340U (en) * | 2014-10-15 | 2015-04-15 | 武汉康曼测控***有限公司 | A kind of optical cable comprehensive tester |
| CN105375981A (en) * | 2015-10-09 | 2016-03-02 | 武汉光谷互连科技有限公司 | An optical cable general locating system and method |
| CN109802722A (en) * | 2018-12-29 | 2019-05-24 | 武汉光谷互连科技有限公司 | A kind of optical cable generally investigates realization device synchronous with localization of fault |
| CN109813525A (en) * | 2018-12-29 | 2019-05-28 | 武汉光谷互连科技有限公司 | A kind of Novel optical cable identification device and recognition methods |
| CN209783877U (en) * | 2019-05-31 | 2019-12-13 | 海南电网有限责任公司信息通信分公司 | Optical cable general investigation device |
-
2021
- 2021-12-01 CN CN202111448006.1A patent/CN114001926A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5442434A (en) * | 1993-10-20 | 1995-08-15 | Antel Optronics Inc. | Method for finding and measuring optical features using an optical time domain reflectometer |
| CN203399113U (en) * | 2013-05-03 | 2014-01-15 | (株)韩国一诺仪器株式会社 | Optical cable general detection device with information identification function |
| CN203399115U (en) * | 2013-05-03 | 2014-01-15 | (株)韩国一诺仪器株式会社 | Optical cable general detection device with fiber end face detection function |
| CN103323215A (en) * | 2013-05-20 | 2013-09-25 | 中国电子科技集团公司第四十一研究所 | Device and method for measuring optical time domain reflection |
| CN103532616A (en) * | 2013-09-29 | 2014-01-22 | 中国电子科技集团公司第四十一研究所 | Integrative optical cable fault detection device |
| CN204269340U (en) * | 2014-10-15 | 2015-04-15 | 武汉康曼测控***有限公司 | A kind of optical cable comprehensive tester |
| CN105375981A (en) * | 2015-10-09 | 2016-03-02 | 武汉光谷互连科技有限公司 | An optical cable general locating system and method |
| CN109802722A (en) * | 2018-12-29 | 2019-05-24 | 武汉光谷互连科技有限公司 | A kind of optical cable generally investigates realization device synchronous with localization of fault |
| CN109813525A (en) * | 2018-12-29 | 2019-05-28 | 武汉光谷互连科技有限公司 | A kind of Novel optical cable identification device and recognition methods |
| CN209783877U (en) * | 2019-05-31 | 2019-12-13 | 海南电网有限责任公司信息通信分公司 | Optical cable general investigation device |
Non-Patent Citations (1)
| Title |
|---|
| 韩修林等: "迈克尔逊干涉仪实验综述报告", 《仪器仪表用户》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115208468A (en) * | 2022-09-14 | 2022-10-18 | 高勘(广州)技术有限公司 | Method, device and system for determining optical cable routing point and storage medium |
| CN115208468B (en) * | 2022-09-14 | 2022-11-18 | 高勘(广州)技术有限公司 | Method, device and system for determining optical cable routing point and storage medium |
| CN115865188A (en) * | 2023-02-20 | 2023-03-28 | 卓信通信股份有限公司 | Optical cable general survey instrument system, use method thereof and vibrator |
| CN115865188B (en) * | 2023-02-20 | 2023-05-02 | 卓信通信股份有限公司 | Optical cable census instrument system and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114001926A (en) | Optical cable census analyzer and analog signal processing method thereof | |
| CN103323215B (en) | A kind of light time domain reflection measuring apparatus and method | |
| WO2019015426A1 (en) | Multi-functional distributed optical fibre sensing device | |
| CN109813525B (en) | Optical cable identification device and identification method | |
| CN105591693A (en) | Integrated test system and integrated test method for fiber-optic network | |
| CN103281118B (en) | Based on the recognition positioning method of the optical cable identification physics position indicator of fiber optic interferometric cross correlation algorithm | |
| CN106612146A (en) | System for rapidly finding and precisely positioning ground position of fault point of communication optical fiber | |
| CN110703349B (en) | Pipe cleaner blocking positioning device and method based on optical fiber sensing | |
| EP3546960B1 (en) | Apparatus and method for monitoring and controlling detection of stray voltage anomalies using a photonic sensor | |
| CN116015440B (en) | Optical fiber fault point positioning method and device, optical cable sonar instrument and storage medium | |
| CN107749777A (en) | A kind of fiber failure positioner and Fault Locating Method | |
| CN107588873B (en) | Optical fiber sensing device with electromagnetic environment monitoring function | |
| US20170168097A1 (en) | Data Management with Spectrum Analyzers | |
| US7826043B1 (en) | Optical leak detection instrument | |
| CN205594118U (en) | Transmission line ground connection flashover fault positioning system | |
| CN210953326U (en) | Relay protection multi-channel optical fiber intelligent tester | |
| JP5298043B2 (en) | Optical cable laying environment measuring method, optical cable laying environment measuring device, and optical cable laying environment measuring system | |
| CN110071759B (en) | Optical cable fault positioning device and method based on polarized white light interference | |
| CN108123751A (en) | Method, equipment and the system that Cable's Fault quickly positions | |
| CN204286753U (en) | Far-end speech optical cable identifier | |
| CN114910250A (en) | Method and device for identifying target optical cable from multiple optical cables | |
| CN113834631B (en) | Optical fiber measuring method, system and device | |
| JP2000009527A (en) | Noise-monitoring system and cable transmission system | |
| CN113375837B (en) | Automatic measurement method and device for temperature coefficient of optical quantum BOTDR optical fiber | |
| CN105356938A (en) | Detection apparatus of amplitude and frequency modulation signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220201 |
|
| RJ01 | Rejection of invention patent application after publication |