CN110132400B - Optical cable general investigation system and method under complex background environment - Google Patents
Optical cable general investigation system and method under complex background environment Download PDFInfo
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- CN110132400B CN110132400B CN201910466163.1A CN201910466163A CN110132400B CN 110132400 B CN110132400 B CN 110132400B CN 201910466163 A CN201910466163 A CN 201910466163A CN 110132400 B CN110132400 B CN 110132400B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 165
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- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000012216 screening Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
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- 230000005389 magnetism Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
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- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
- G01H9/006—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors the vibrations causing a variation in the relative position of the end of a fibre and another element
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Abstract
The invention provides an optical cable general survey system and a method under a complex background environment, which comprises at least two optical cable general survey instruments, wherein the first optical cable general survey instrument is connected with an optical cable, the second optical cable general survey instrument provides a vibration disturbance signal for the optical cable to be tested, a vibration component and a data processing module are additionally arranged on the optical cable general survey instrument, the vibration component can replace the traditional manual knocking mode, compared with the manual knocking mode, the vibration component can generate fixed frequency and can generate a frequency spectrum signal which is easier to identify, the data judging module in the data processing module can judge an electric signal transmitted back from the optical cable to be tested, when the characteristic of the frequency spectrum signal is judged to be unobvious, a frequency modulation signal is transmitted to a first controller in the vibration component of the second optical cable general survey instrument, the first controller changes the magnitude of an intermittent current output by the first controller, thereby changing the frequency of vibration and being suitable for optical cable general survey under the complex background environment, and the efficiency of cable screening can be improved.
Description
Technical Field
The invention relates to the technical field of optical cable census, in particular to an optical cable census system and an optical cable census method under a complex background environment.
Background
With the continuous development of communication technology, the amount of communication optical cables in China is increased year by year, optical fiber networks in provinces and cities are staggered and criss-cross, optical cables are various in arrangement modes, including overhead, pipeline, direct burial and the like, the environment is very complex, when the optical cables are transformed and repaired, lines needing to be transformed are usually required to be distinguished from a plurality of optical cables, the optical cables are traditionally pulled, cut and the like on one side of the optical cables, and the methods obviously have great damage to the optical cables.
The existing optical cable general survey instrument completely replaces the existing optical cable survey methods such as freezing, bending and cutting, and is equipment capable of quickly clearing an optical cable without causing any damage to the optical cable, but the existing optical cable general survey instruments on the market cannot completely meet the use requirements of users, the existing general survey instruments mainly knock the optical cable to be tested and check the optical signal waveform on the equipment manually, basically fail in a complex environment, the optical cable vibration caused by manual knocking usually has no obvious natural frequency, and cannot generate a waveform diagram which is easy to distinguish, so that the identification is difficult in the complex environment, and even the misjudgment condition sometimes occurs.
Disclosure of Invention
Therefore, the invention provides an optical cable general investigation system and method under a complex background environment, which adopt a mechanical vibration mode to replace manual knocking to generate vibration, can generate a frequency spectrum signal which is easier to identify, can automatically identify the frequency spectrum signal, can automatically increase the vibration frequency when the frequency spectrum signal is not obvious enough due to lower vibration frequency, realize the automatic general investigation of the optical cable, can be suitable for the optical cable general investigation under the complex background, and has high identification accuracy.
The technical scheme of the invention is realized as follows:
an optical cable census system under a complex background environment comprises at least two optical cable census instruments, wherein each optical cable census instrument comprises a laser, an interference optical path device, a vibration assembly, a data processing module and a wireless transceiver, and the interference optical path devices are respectively and electrically connected with the lasers and the data processing module; the vibration assembly comprises a first controller, an electromagnet, a vibrating rod and a return spring, the first controller sends an intermittent current signal to the electromagnet, the electromagnet attracts the vibrating rod to move after being electrified, and the return spring pulls the vibrating rod to move to generate vibration when no current passes through the electromagnet; the data processing module comprises a data transmission module, a data judgment module and a display, the data transmission module is electrically connected with the display, the data judgment module and the interference optical path device respectively, the data judgment module sends a frequency modulation signal to the first controller, and the first controller is electrically connected with the wireless transceiver.
Preferably, the optical cable survey instrument further comprises an instrument main body, the laser, the interference optical circuit, the first controller, the electromagnet, the reset spring, the data transmission module and the data judgment module are arranged in the instrument main body, the display is arranged on the instrument main body, and the vibrating rod penetrates out of the instrument main body from the inside of the instrument main body.
Preferably, the instrument main body includes a vibration portion provided outside the instrument main body, and the vibration rod penetrates out of the inside of the instrument main body to the inside of the vibration portion and contacts with an inner wall of the vibration portion.
Preferably, the optical cable survey instrument further comprises an iron piece, the iron piece is arranged inside the instrument main body, the vibrating rod is arranged on the iron piece, and the two ends of the reset spring are respectively connected to the iron piece and the inner wall of the instrument main body.
Preferably, the interference optical path device includes a first coupler and a second coupler, and the first coupler is electrically connected to the second coupler and the data transmission module, respectively.
Preferably, the data transmission module comprises a light detector.
Preferably, the data judgment module includes a second controller.
An optical cable census method under a complex background environment comprises the following steps:
s1, the first controller sends an intermittent current signal to the electromagnet, and the vibrating rod generates vibration under the action of the magnetic force of the electromagnet and the tension of the return spring and acts on the optical cable to be tested;
s2, enabling an optical signal generated by the laser to enter the optical cable to be tested through interference of the interference optical circuit, returning to the interference optical circuit and transmitting to the data transmission module;
s3, the data transmission module converts the optical signal into an electric signal and transmits the electric signal to the data judgment module and the display, and the display displays a spectrogram;
s4, the data judgment module judges whether the characteristics of the spectrogram are obvious or not according to the received electric signals, and if the characteristics of the spectrogram are not obvious, the data judgment module sends frequency modulation signals to the first controller;
s5, the first controller processes the frequency modulation signal to obtain an intermittent current regulation signal, and sends the intermittent current regulation signal to the first controller of the other optical cable survey instrument through the wireless transceiver;
and S6, adjusting the vibration frequency by the first controller of the other optical cable survey instrument according to the intermittent current adjusting signal.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an optical cable general survey system and a method under a complex background, which comprises at least two optical cable general survey instruments with vibration functions, wherein the first optical cable general survey instrument is connected with an optical cable, the second optical cable general survey instrument is arranged at any position of other optical cables to be tested and used for providing a vibration disturbance signal, the optical cable general survey instrument adopts a mode of controlling the vibration of a vibrating rod by an electromagnet to replace the traditional manual knocking, compared with the manual knocking, the optical cable general survey instrument can generate the vibration with fixed frequency and can generate a frequency spectrum signal which is easier to identify, and a data judgment module can judge whether the characteristic of the frequency spectrum signal displayed on a display is obvious or not by the arrangement, if the characteristic of the frequency spectrum signal is not obvious enough, the data judgment module can send a frequency modulation signal to a first controller, and the first controller adjusts and sends an intermittent current adjustment signal to another optical cable general survey instrument, therefore, the magnetism of the electromagnet is changed, the vibration frequency of the vibrating rod is increased, and the vibrating rod is suitable for optical cable general investigation in complex environments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a block diagram of one embodiment of a cable screening system in a complex background environment in accordance with the present invention;
FIG. 2 is an internal block diagram of one embodiment of a cable screening system in a complex background environment of the present invention;
FIG. 3 is a schematic diagram of one embodiment of a cable screening system in a complex background environment in accordance with the present invention;
FIG. 4 is a flow chart of one embodiment of a cable screening method in a complex background environment of the present invention;
in the figure, 1 is a laser, 2 is an interference optical device, 3 is a data processing module, 4 is a first controller, 5 is an electromagnet, 6 is a vibrating rod, 7 is a return spring, 8 is a data transmission module, 9 is a data judgment module, 10 is a display, 11 is an instrument main body, 12 is a vibrating part, 13 is an iron part, 14 is a first coupler, 15 is a second coupler, and 16 is a wireless transceiver.
Detailed Description
For a better understanding of the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the optical cable census system under a complex background environment provided by the invention comprises at least two optical cable census instruments, wherein each optical cable census instrument comprises a laser 1, an interference optical device 2, a vibration component, a data processing module 3 and a wireless transceiver 16, and the interference optical device 2 is electrically connected with the laser 1 and the data processing module 3 respectively; the vibration assembly comprises a first controller 4, an electromagnet 5, a vibrating rod 6 and a return spring 7, wherein the first controller 4 sends an intermittent current signal to the electromagnet 5, the electromagnet 5 attracts the vibrating rod 6 to move after being electrified, and the return spring 7 pulls the vibrating rod 6 to move to generate vibration when no current passes through the electromagnet 5; the data processing module 3 comprises a data transmission module 8, a data judgment module 9 and a display 10, the data transmission module 8 is respectively electrically connected with the display 10, the data judgment module 9 and the interference optical path unit 2, the data judgment module 9 sends a frequency modulation signal to the first controller 4, and the first controller 4 is electrically connected with the wireless transceiver 16.
In this embodiment, compared with the conventional optical cable census method, the optical cable census instrument is additionally provided with a vibration component capable of adjusting frequency and a data processing module 3 for judging the characteristics of the spectrum signal, and through the vibration component, can replace the traditional manual knocking, can generate a frequency spectrum signal which is easier to identify, improves the efficiency of optical cable general investigation, the data processing module 3 is arranged to determine the spectrum signal displayed on the display 10, when the frequency spectrum signal is not obvious in characteristic, the data processing module 3 sends a frequency modulation signal to the first controller 4, the first controller 4 changes the magnitude of the intermittent current signal output to the electromagnet 5, so that the magnetic force of the electromagnet 5 is increased, therefore, the vibration frequency of the vibrating rod 6 is changed, the optical cable general investigation under the complex environment can be suitable, the general investigation process is automatic, and the optical cable general investigation efficiency is further improved in a mode of automatically adjusting the vibration frequency.
The working principle of the vibration component of the invention is as follows: the first controller 4 sends an intermittent current signal to the electromagnet 5, the electromagnet 5 is magnetic after being electrified, the vibrating rod 6 is attracted to move towards the electromagnet 5, when the electromagnet 5 has no current passing, the vibrating rod 6 moves away from the electromagnet 5 under the elastic force of the reset spring 7 to generate vibration, the magnetic force of the electromagnet 5 is changed by adjusting the size of the intermittent current signal, and therefore the vibration frequency of the vibrating rod 6 can be changed, specifically, the intermittent current signal sent by the first controller 4 is a PWM (pulse width modulation) signal, and therefore, for the first controller 4, a single chip microcomputer with the model number of STM32F103C8 can be adopted.
The principle of the general survey of the optical cable is as follows: connecting a first optical cable searching instrument with an optical cable, arranging a second optical cable searching instrument at any position of the optical cable to be detected, generating a detection light signal by a laser 1 of the first optical cable searching instrument, injecting the detection light signal into the optical cable to be detected after passing through an interference optical path device 2, generating end surface reflection of the detection light signal at the tail end of the optical cable to be detected, returning the detection light signal to the interference optical path device 2, returning the signal to a data transmission module 8 by the interference optical path device 2, converting the light signal by the data transmission module 8, transmitting the converted light signal to a display 10 and a data judgment module 9, displaying image information of a frequency spectrum signal by the display 10, judging whether the characteristic of the frequency spectrum signal is obvious or not by the data judgment module 9, and adjusting the vibration frequency when the characteristic is not obvious enough, so that the data judgment module 9 sends a frequency modulation signal to a first controller 4, and the first controller 4 processes the frequency modulation signal to obtain an intermittent current adjustment signal, and the intermittent current regulation signal is sent to the wireless transceiver 16 of the second optical cable survey instrument through the wireless transceiver 16, the first controller 4 of the second optical cable survey instrument changes the current output to the electromagnet 5 of the second optical cable survey instrument according to the intermittent current regulation signal, so that the vibration frequency is changed, the optical cable survey instrument is suitable for optical cable survey under a complex environment, the optical cable survey efficiency is improved, and the wireless transceiver 16 can be realized by adopting a ZigBee transceiver UM 2460.
Preferably, the optical cable survey instrument further comprises an instrument main body 11, the laser 1, the interference optical circuit 2, the first controller 4, the electromagnet 5, the return spring 7, the data transmission module 8 and the data judgment module 9 are arranged in the instrument main body 11, the display 10 is arranged on the instrument main body 11, and the vibrating rod 6 penetrates out of the instrument main body 11 from the inside of the instrument main body 11.
Specifically, the optical cable census system is integrated in the instrument main body 11, is convenient to carry, improves the efficiency of optical cable census, and the vibrating rod 6 extends out of the instrument main body 11 and is used for directly contacting with the optical cable to generate vibration.
Preferably, the device body 11 includes a vibration part 12, the vibration part 12 is disposed outside the device body 11, and the vibration rod 6 passes through the device body 11 to the inside of the vibration part 12 and contacts with the inner wall of the vibration part 12.
In order to ensure that the vibrating rod 6 effectively acts on the optical cable, a vibrating part 12 is arranged outside the instrument main body 11, one end of the vibrating rod 6 is in contact with the bottom of the vibrating part 12, and the vibrating rod 6 can continuously impact the vibrating part 12 under the action of the electromagnet 5 and the return spring 7 so as to generate vibration.
Preferably, the optical cable survey instrument further comprises an iron piece 13, the iron piece 13 is arranged inside the instrument main body 11, the vibrating rod 6 is arranged on the iron piece 13, and two ends of the return spring 7 are respectively connected to the iron piece 13 and the inner wall of the instrument main body 11.
The purpose of ironware 13 is attracted by the magnetic force of electro-magnet 5 when electro-magnet 5 circular telegram, thereby it removes to electro-magnet 5 direction to drive vibrating arm 6, be provided with reset spring 7 between ironware 13 and the 11 inner walls of instrument main part, when ironware 13 is attracted by the magnetic force of electro-magnet 5, ironware 13 removes to electro-magnet 5 direction, drive vibrating arm 6 synchronous motion rather than being connected, electro-magnet 5 does not have magnetism when uncharged, under reset spring 7's elasticity, reset spring 7 pulls ironware 13 and removes to keeping away from electro-magnet 5 direction, the tip of vibrating arm 6 can strike vibration portion 12, thereby produce the vibration, under concrete conditions, vibrating arm 6 also can adopt the metal material, attract ironware 13 and vibrating arm 6 simultaneously by electro-magnet 5, or vibrating arm 6 adopts non-metallic material, it can to attract ironware 13 to drive vibrating arm 6 to remove by electro-magnet 5.
Preferably, the interference optical circuit device 2 includes a first coupler 14 and a second coupler 15, and the first coupler 14 is electrically connected to the second coupler 15 and the data transmission module 8, respectively.
The detection optical signal is injected into the optical cable to be detected after passing through the interference optical circuit 2, and returns to the interference optical circuit 2 after being reflected at the tail end of the optical fiber, and generates a plurality of optical signals, interference is generated among the optical signals, the optical signals are received by the data transmission module 8, and when any position of the optical cable is disturbed by vibration, the phase of the optical signal transmitted in the optical cable is changed, and the optical power of the finally reflected optical signal is changed.
Preferably, the data transmission module 8 comprises a light detector.
The optical detector is used for receiving the detection optical signal returned by the interference optical circuit 2, converting the optical signal into an electrical signal, transmitting the electrical signal to the display 10 for displaying and transmitting the electrical signal to the data judgment module 9 for judgment.
Preferably, the data determining module 9 includes a second controller.
The second controller can also be realized by adopting a single chip microcomputer with the model number of STM32F103C8, and the judgment of the frequency spectrum signal characteristics is realized through a built-in program.
Referring to fig. 4, the optical cable general survey method under the complex background environment of the invention comprises the following steps: s1, the first controller 4 sends an intermittent current signal to the electromagnet 5, and the vibrating rod 6 generates vibration under the action of the magnetic force of the electromagnet 5 and the tension of the return spring 7 and acts on the optical cable to be tested;
s2, enabling an optical signal generated by the laser 1 to enter the optical cable to be tested through interference of the interference optical circuit 2, returning to the interference optical circuit 2, and transmitting to the data transmission module 8;
s3, the data transmission module 8 converts the optical signal into an electric signal and transmits the electric signal to the data judgment module 9 and the display 10, and the display 10 displays a spectrogram;
s4, the data determining module 9 determines whether the characteristic of the spectrogram is obvious according to the received electrical signal, and if the characteristic of the spectrogram is not obvious, the data determining module 9 sends a frequency modulation signal to the first controller 4;
s5, the first controller 4 processes the frequency modulation signal to obtain an intermittent current regulation signal, and sends the intermittent current regulation signal to the first controller 4 of the other optical cable survey instrument through the wireless transceiver 16;
and S6, the first controller 4 of the other optical cable survey instrument adjusts the vibration frequency according to the intermittent current adjusting signal.
When the optical cable general survey is carried out, the first optical cable general survey instrument is connected with the optical cable, then the second optical cable general survey instrument is moved to the vicinity of the optical cable to be measured, the vibration rod 6 of the second optical cable general survey instrument generates vibration action to be used for disturbing on the optical cable, so that the phase of an optical signal transmitted by the optical cable is changed, the optical signal is transmitted to the data transmission module 8 through the interference optical circuit 2 of the first optical cable general survey instrument, the optical signal is transmitted to the display 10 and the data judgment module 9 after being processed by the data transmission module 8, the display 10 can display a corresponding frequency spectrum signal, the data judgment module 9 can judge a received signal, when the characteristic of the frequency spectrum signal is judged to be not obvious enough, a frequency modulation signal is sent to the first controller 4, the first controller 4 obtains an intermittent current regulation signal according to the frequency modulation signal, and sends the intermittent current regulation signal to the wireless transceiver 16 of the second optical cable general survey instrument through the wireless transceiver 16, thereby the first controller 4 of second optical cable general survey appearance can adjust the electric current size of exporting electro-magnet 5 according to intermittent current adjusting signal to change the frequency of vibration, for the optical cable general survey provides the guarantee, improve the efficiency of optical cable general survey, and can be applicable to the general survey in the complex environment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The optical cable general survey system under the complex background environment is characterized by comprising at least two optical cable general survey instruments, wherein each optical cable general survey instrument comprises a laser, an interference optical path device, a vibration component, a data processing module and a wireless transceiver, and the interference optical path devices are respectively and electrically connected with the laser and the data processing module; the vibration assembly comprises a first controller, an electromagnet, a vibrating rod and a return spring, the first controller sends an intermittent current signal to the electromagnet, the electromagnet attracts the vibrating rod to move after being electrified, and the return spring pulls the vibrating rod to move to generate vibration when no current passes through the electromagnet; the data processing module comprises a data transmission module, a data judgment module and a display, the data transmission module is respectively and electrically connected with the display, the data judgment module and the interference optical circuit, the data judgment module sends a frequency modulation signal to a first controller, and the first controller is electrically connected with the wireless transceiver; the data judgment module judges the received signal, when the characteristic of the frequency spectrum signal is judged to be not obvious enough, the frequency modulation signal is sent to the first controller, the first controller obtains an intermittent current regulation signal according to the frequency modulation signal and sends the intermittent current regulation signal to the first controller of the other optical cable general-purpose inspection instrument through the wireless transceiver, and the first controller of the other optical cable general-purpose inspection instrument regulates the current output to the electromagnet according to the intermittent current regulation signal.
2. The optical cable general survey system under the complex background environment as claimed in claim 1, wherein the optical cable general survey instrument further comprises an instrument main body, the laser, the interference optical circuit, the first controller, the electromagnet, the reset spring, the data transmission module and the data judgment module are arranged in the instrument main body, the display is arranged on the instrument main body, and the vibrating rod penetrates out of the instrument main body from the inside of the instrument main body.
3. The system for commonly surveying the optical cables in the complex background environment as claimed in claim 2, wherein the instrument body comprises a vibrating portion, the vibrating portion is disposed outside the instrument body, and the vibrating rod penetrates out of the inside of the instrument body to the inside of the vibrating portion and contacts with an inner wall of the vibrating portion.
4. The system of claim 2, wherein the optical cable screening instrument further comprises an iron member, the iron member is disposed inside the instrument main body, the vibrating rod is disposed on the iron member, and two ends of the return spring are respectively connected to the iron member and an inner wall of the instrument main body.
5. The system for fiber optic cable screening in a complex background environment as claimed in claim 1, wherein said interference optical circuit includes a first coupler and a second coupler, and said first coupler is electrically connected to said second coupler and said data transmission module respectively.
6. The system for fiber optic cable screening in a complex background as claimed in claim 1, wherein said data transmission module includes a light detector.
7. The system for fiber optic cable screening in a complex background as claimed in claim 1, wherein said data determining module comprises a second controller.
8. An optical cable census method in a complex background using the optical cable census system in a complex background as claimed in any one of claims 1 to 7, comprising the steps of:
s1, the first controller sends an intermittent current signal to the electromagnet, and the vibrating rod generates vibration under the action of the magnetic force of the electromagnet and the tension of the return spring and acts on the optical cable to be tested;
s2, enabling an optical signal generated by the laser to enter the optical cable to be tested through interference of the interference optical circuit, returning to the interference optical circuit and transmitting to the data transmission module;
s3, the data transmission module converts the optical signal into an electric signal and transmits the electric signal to the data judgment module and the display, and the display displays a spectrogram;
s4, the data judgment module judges whether the characteristics of the spectrogram are obvious or not according to the received electric signals, and if the characteristics of the spectrogram are not obvious, the data judgment module sends frequency modulation signals to the first controller;
s5, the first controller processes the frequency modulation signal to obtain an intermittent current regulation signal, and sends the intermittent current regulation signal to the first controller of the other optical cable survey instrument through the wireless transceiver;
and S6, adjusting the vibration frequency by the first controller of the other optical cable survey instrument according to the intermittent current adjusting signal.
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| CN113851270B (en) * | 2021-09-08 | 2023-11-28 | 富通集团（嘉善）通信技术有限公司 | Identifiable snow-proof optical cable |
| 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 |
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