CN115388957B - Method, device and system for detecting OPGW optical cable icing and storage medium - Google Patents
Method, device and system for detecting OPGW optical cable icing and storage medium Download PDFInfo
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- CN115388957B CN115388957B CN202211319494.0A CN202211319494A CN115388957B CN 115388957 B CN115388957 B CN 115388957B CN 202211319494 A CN202211319494 A CN 202211319494A CN 115388957 B CN115388957 B CN 115388957B
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G08B19/02—Alarm responsive to formation or anticipated formation of ice
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Abstract
The invention relates to the technical field of optical fiber sensing, and discloses a method, a device and a system for detecting OPGW (optical fiber composite overhead ground wire) optical cable icing and a storage medium, which are used for detecting the OPGW optical cable icing. The method for detecting the icing of the OPGW optical cable comprises the following steps: acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable, and generating attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section based on the light intensity and frequency of the transmission optical signal; if the optical fiber temperature data meet the preset temperature condition, judging whether the attenuation data, the vibration data and the optical fiber stress-strain data meet the corresponding preset conditions; and if the attenuation data, the vibration data or the optical fiber stress strain data meet the corresponding preset conditions, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
Description
Technical Field
The invention relates to the technical field of optical fiber sensing, in particular to a method, a device and a system for detecting OPGW (optical fiber composite overhead ground wire) optical cable icing and a storage medium.
Background
An Optical Fiber Composite Overhead Ground Wire (OPGW) is a Fiber optic cable that is placed in a Ground Wire of an Overhead high-voltage power transmission line to form an Optical Fiber communication network on the power transmission line, and this structural form has dual functions of Ground Wire and communication, and is generally called an OPGW Optical cable.
In the process of power transmission, due to the complex terrain and ground conditions, the probability of the power transmission line being subjected to line icing is very high, and particularly in areas with high humidity or prone to snow, the phenomenon of line icing is easy to occur. The ice coating of the power transmission line seriously threatens the safe operation of a power grid, and can cause serious accidents such as galloping damage, line tripping and power failure, ice coating flashover, line breakage, tower collapse and the like caused by the ice coating of an insulator string. However, the traditional manual inspection method is difficult to effectively observe the whole high-voltage transmission cable in real time.
Disclosure of Invention
The invention provides a method, a device and a system for detecting OPGW (optical fiber composite overhead ground wire) optical cable icing and a storage medium, which are used for detecting the OPGW optical cable icing.
The invention provides a method for detecting OPGW optical cable icing, which comprises the following steps: acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable, and generating attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section based on the light intensity and frequency of the transmission optical signal; if the optical fiber temperature data meet the preset temperature condition, judging whether the attenuation data, the vibration data and the optical fiber stress-strain data meet the corresponding preset conditions; and if the attenuation data, the vibration data or the optical fiber stress strain data meet corresponding preset conditions, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
In one possible embodiment, the acquiring a transmission optical signal of a target optical cable segment in a target OPGW optical cable and generating attenuation data, vibration data, fiber stress strain data, and fiber temperature data corresponding to the target optical cable segment based on an optical intensity and a frequency of the transmission optical signal includes: acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable, and generating attenuation data corresponding to the target optical cable section based on the light intensity of the transmission optical signal; separating the transmission optical signal based on the frequency of the transmission optical signal to obtain first scattering data, second scattering data and third scattering data; generating vibration data corresponding to the target optical cable section based on the first scattering data; generating optical fiber stress-strain data corresponding to the target optical cable segment based on the second scattering data; and generating optical fiber temperature data corresponding to the target optical cable section based on the third scattering data.
In a possible embodiment, the separating the transmission optical signal based on the frequency of the transmission optical signal to obtain first scattering data, second scattering data and third scattering data includes: determining an optical wave in the transmission optical signal, which conforms to a first preset frequency, as first scattering data based on the frequency of the transmission optical signal, wherein the first preset frequency is equal to the frequency of the transmission optical signal; determining light waves in the transmission light signals, which accord with a second preset frequency, as second scattering data, wherein the second preset frequency is greater than the first preset frequency; and determining light waves in the transmission light signal which accord with a third preset frequency as third scattering data, wherein the third preset frequency is greater than the second preset frequency.
In a possible implementation, after the obtaining a transmission optical signal of a target optical cable segment in a target OPGW optical cable and generating attenuation data, vibration data, fiber stress strain data, and fiber temperature data corresponding to the target optical cable segment based on the optical intensity and frequency of the transmission optical signal, the method further includes: determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data; if the optical fiber temperature value is less than or equal to a preset temperature value, determining a loss value corresponding to the target optical cable section based on the loss data; and if the attenuation value is greater than or equal to a preset attenuation value, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
In a possible implementation, after the obtaining a transmission optical signal of a target optical cable segment in a target OPGW optical cable and generating attenuation data, vibration data, fiber stress strain data, and fiber temperature data corresponding to the target optical cable segment based on the optical intensity and frequency of the transmission optical signal, the method further includes: determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data; if the optical fiber temperature value is less than or equal to a preset temperature value, determining a vibration amplitude value corresponding to the target optical cable section based on the vibration data; and if the vibration amplitude value is larger than or equal to a preset amplitude value, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
In a possible implementation, after the obtaining a transmission optical signal of a target optical cable segment in a target OPGW optical cable and generating attenuation data, vibration data, fiber stress strain data, and fiber temperature data corresponding to the target optical cable segment based on the optical intensity and frequency of the transmission optical signal, the method further includes: determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data; if the optical fiber temperature value is less than or equal to a preset temperature value, determining a tension value corresponding to the target optical cable section based on the optical fiber stress-strain data; and if the tension value is greater than or equal to a preset tension value, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
In a possible embodiment, after generating an icing alarm signal if the attenuation data, the vibration data, or the optical fiber stress-strain data satisfies a corresponding preset condition, the method further includes: generating position information of an abnormal ice-coated optical cable point in the target optical cable section based on the attenuation data, the vibration data or the optical fiber stress-strain data; and controlling preset ice melting equipment to melt the ice of the target optical cable segment based on the position information of the abnormal ice-coated optical cable point.
The second aspect of the present invention provides an apparatus for detecting ice coating on an OPGW optical cable, including: the acquisition and generation module is used for acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable and generating attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section based on the light intensity and frequency of the transmission optical signal; the judging module is used for judging whether the attenuation data, the vibration data and the optical fiber stress strain data meet corresponding preset conditions or not if the optical fiber temperature data meet preset temperature conditions; the first signal generation module is used for generating an icing alarm signal if the attenuation data, the vibration data or the optical fiber stress strain data meet corresponding preset conditions, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
In one possible implementation, the obtaining and generating module includes: the acquisition and generation unit is used for acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable and generating attenuation data corresponding to the target optical cable section based on the light intensity of the transmission optical signal; a separation unit, configured to separate the transmission optical signal based on a frequency of the transmission optical signal to obtain first scattering data, second scattering data, and third scattering data; the vibration data generation unit is used for generating vibration data corresponding to the target optical cable section based on the first scattering data; the stress data generating unit is used for generating optical fiber stress strain data corresponding to the target optical cable segment based on the second scattering data; and the temperature data generation unit is used for generating optical fiber temperature data corresponding to the target optical cable segment based on the third scattering data.
In a possible embodiment, the separation unit is particularly adapted to: determining an optical wave in the transmission optical signal, which conforms to a first preset frequency, as first scattering data based on the frequency of the transmission optical signal, wherein the first preset frequency is equal to the frequency of the transmission optical signal; determining light waves in the transmission light signals, which accord with a second preset frequency, as second scattering data, wherein the second preset frequency is greater than the first preset frequency; and determining light waves in the transmission light signal which accord with a third preset frequency as third scattering data, wherein the third preset frequency is greater than the second preset frequency.
In one possible embodiment, the apparatus for detecting ice coating on an OPGW optical cable further includes: the first temperature value determining module is used for determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data; the attenuation value determining module is used for determining an attenuation value corresponding to the target optical cable section based on the attenuation data if the optical fiber temperature value is less than or equal to a preset temperature value; and the second signal generation module is used for generating an icing alarm signal if the attenuation value is greater than or equal to a preset attenuation value, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
In one possible embodiment, the apparatus for detecting ice coating on an OPGW optical cable further includes: the second temperature value determining module is used for determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data; the amplitude value determining module is used for determining a vibration amplitude value corresponding to the target optical cable section based on the vibration data if the optical fiber temperature value is less than or equal to a preset temperature value; and the third signal generation module is used for generating an icing alarm signal if the vibration amplitude value is greater than or equal to a preset amplitude value, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
In one possible embodiment, the apparatus for detecting ice coating on an OPGW optical cable further includes: the third temperature value determining module is used for determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data; the tension value determining module is used for determining a tension value corresponding to the target optical cable section based on the optical fiber stress strain data if the optical fiber temperature value is less than or equal to a preset temperature value; and the fourth signal generation module is used for generating an icing alarm signal if the tension value is greater than or equal to a preset tension value, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
In a possible embodiment, the apparatus for detecting ice coating on an OPGW optical cable further includes: the position information generation module is used for generating position information of an abnormal ice-coated optical cable point in the target optical cable section based on the attenuation data, the vibration data or the optical fiber stress strain data; and the control module is used for controlling preset ice melting equipment to melt the ice of the target optical cable segment based on the position information of the abnormal ice-coated optical cable point.
The third aspect of the present invention provides a system for detecting ice coating on an OPGW optical cable, where the system for detecting ice coating on an OPGW optical cable includes: the system comprises an OPGW optical cable detection host and a monitoring management platform, wherein the monitoring management platform is used for controlling the OPGW optical cable detection host and displaying attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data; the monitoring management platform comprises: a memory and at least one processor, the memory having instructions stored therein; the at least one processor invokes the instructions in the memory to cause the OPGW cable icing detection system to perform the OPGW cable icing detection method described above.
A fourth aspect of the present invention provides a computer-readable storage medium having stored therein instructions that, when run on the detection system for OPGW cable icing, cause the detection system for OPGW cable icing to perform the above-described detection method for OPGW cable icing.
In the technical scheme provided by the invention, a transmission optical signal of a target optical cable section in a target OPGW optical cable is obtained, and attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section are generated based on the light intensity and frequency of the transmission optical signal; if the optical fiber temperature data meet the preset temperature condition, judging whether the attenuation data, the vibration data and the optical fiber stress-strain data meet the corresponding preset conditions; and if the attenuation data, the vibration data or the optical fiber stress strain data meet the corresponding preset conditions, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state. In the embodiment of the invention, attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section are generated based on the light intensity and frequency of the optical signal transmitted in the target optical cable section, and if the attenuation data, the vibration data or the optical fiber stress strain data meet the corresponding preset conditions under the condition that the optical fiber temperature data meet the preset temperature conditions, an ice coating alarm signal is generated and used for indicating that the target optical cable section is in an abnormal ice coating state, so that the detection of the ice coating of the OPGW optical cable is realized, and the accident of line tripping or fiber breakage caused by serious ice coating of the OPGW optical cable is avoided.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a method for detecting ice coating on an OPGW optical cable in an embodiment of the present invention;
fig. 2 is a schematic diagram of another embodiment of the method for detecting ice coating on an OPGW optical cable in the embodiment of the present invention;
fig. 3 is a schematic diagram of an embodiment of an apparatus for detecting ice coating on an OPGW optical cable in the embodiment of the present invention;
fig. 4 is a schematic diagram of another embodiment of the device for detecting ice coating on the OPGW optical cable in the embodiment of the present invention;
fig. 5 is a schematic diagram of an embodiment of a system for detecting ice coating on an OPGW optical cable in an embodiment of the present invention.
Detailed Description
The invention provides a method, a device and a system for detecting OPGW (optical fiber composite overhead ground wire) optical cable icing and a storage medium, which are used for detecting the OPGW optical cable icing.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Moreover, the terms "comprises," "comprising," or "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For convenience of understanding, a specific flow of an embodiment of the present invention is described below, and referring to fig. 1, an embodiment of a method for detecting ice coating on an OPGW optical cable in an embodiment of the present invention includes:
101. acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable, and generating attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section based on the light intensity and frequency of the transmission optical signal;
it is to be understood that the executing subject of the present invention may be an apparatus for detecting OPGW optical cable icing, and may also be a system for detecting OPGW optical cable icing, which is not limited herein. The embodiment of the present invention takes an OPGW optical cable icing detection system as an implementation subject.
In this embodiment, optical Time Domain Reflectometer (OTDR) is used to detect the Optical cable transmission attenuation of the target Optical cable segment, and the attenuation data corresponding to the target Optical cable segment is generated based on the light intensity of the transmission Optical signal in the target Optical cable segment, and other detection modes of Optical cable transmission attenuation may also be used, which is not limited herein.
In this embodiment, phase sensitive Optical Time Domain reflection (phi-OTDR) is used to perform vibration detection on a target Optical cable segment to generate vibration data corresponding to the target Optical cable segment, and other vibration detection methods may also be used, which is not limited herein.
In this embodiment, fiber stress-strain detection is performed on a target Optical fiber segment by Brillouin Optical Time Domain Reflection (BOTDR), so as to generate fiber stress-strain data corresponding to the target Optical fiber segment, and other fiber stress-strain detection methods may also be used, which are not limited herein.
In this embodiment, distributed Temperature measurement (DTS) is used to perform Temperature detection on the target optical cable segment to generate optical fiber Temperature data corresponding to the target optical cable segment, and other Temperature detection manners may also be used, which are not limited herein.
102. If the optical fiber temperature data meet the preset temperature condition, judging whether the attenuation data, the vibration data and the optical fiber stress-strain data meet the corresponding preset conditions;
the preset temperature condition is used for indicating that the optical fiber temperature value is less than or equal to a preset temperature value, the preset temperature value can be minus 20 ℃ or minus 30 ℃, and the specific preset temperature value can be set according to an actual application scene.
The preset condition of the attenuation data is used for indicating that the attenuation value is greater than or equal to a preset attenuation value, the attenuation value is used for indicating the attenuation value of the optical signal power per kilometer of the optical cable, and the unit is as follows: dB/km, namely decibel per kilometer, the preset attenuation value can be 50dB/km or 60dB/km, and the specific preset attenuation value can be set according to the actual application scene.
The preset condition of the vibration data is used for indicating that the vibration amplitude value is greater than or equal to the preset amplitude value, the preset amplitude value may be 1000, or may be 1500, and the specific preset amplitude value may be set according to an actual application scenario.
The preset condition of the optical fiber stress-strain data is used for representing that the pulling force value is greater than or equal to the preset pulling force value, and the unit is as follows: newton, a symbol of N, where the symbol is N, the preset tension value may be 100N or 200N, and the specific preset tension value may be set according to an actual application scenario.
103. And if the attenuation data, the vibration data or the optical fiber stress strain data meet the corresponding preset conditions, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
For example, if attenuation data, vibration data or optical fiber stress strain data meet corresponding preset conditions, the detection system for the OPGW optical cable icing generates an icing alarm signal, and the icing alarm signal is displayed through the monitoring management platform, so that monitoring management personnel are reminded that a target optical cable section is in an abnormal icing state.
In the embodiment of the invention, attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section are generated based on the light intensity and frequency of the optical signal transmitted in the target optical cable section, and if the attenuation data, the vibration data or the optical fiber stress strain data meet the corresponding preset conditions under the condition that the optical fiber temperature data meet the preset temperature conditions, an ice coating alarm signal is generated and used for indicating that the target optical cable section is in an abnormal ice coating state, so that the detection of the ice coating of the OPGW optical cable is realized, and the accident of line tripping or fiber breakage caused by serious ice coating of the OPGW optical cable is avoided.
Referring to fig. 2, another embodiment of the method for detecting ice coating on an OPGW optical cable according to the embodiment of the present invention includes:
201. acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable, and generating attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section based on the light intensity and frequency of the transmission optical signal;
in this embodiment, optical Time Domain Reflectometer (OTDR) is used to detect the Optical cable transmission attenuation of the target Optical cable segment, and other Optical cable transmission attenuation detection methods may also be used, which is not limited herein. The present embodiment reflects the change in attenuation of the target optical cable section and whether or not the interruption has occurred, by the attenuation data.
The basic principle of OTDR is to measure the transmission attenuation of optical cable and the structural attenuation caused by various structural defects due to scattering, absorption and the like by analyzing the backward scattered light or forward scattered light in the optical cable, for example, when a certain point of the optical cable is subjected to temperature or stress, the scattering characteristic of the point will change, so the disturbance information externally distributed on the optical cable is detected by displaying the corresponding relationship between the attenuation and the length of the optical cable.
When the wavelength of the optical signal transmitted in the optical cable is far away from the resonant frequency of the optical fiber, the optical field can excite a polarized dipole which changes along with time, the dipole can radiate generated secondary light waves, and the phenomenon that the secondary light waves are excited by the optical signal transmitted in the optical cable is light scattering. There are various light scattering phenomena in the optical cable, and the characteristics of the light scattering phenomena are also greatly different along with the difference of the characteristics of the medium and the properties of the transmitted light wave. For example, the scattering frequencies can be classified into three types: (1) Rayleigh scattering, which can detect sound and vibration, wherein the scattering frequency is the same as the frequency of the transmitted optical signal, the scattering light intensity is inversely proportional to the fourth power of the incident light wavelength, and the frequency of the transmitted optical signal is determined according to the actual application scene and is not limited herein; (2) Brillouin scattering, which can detect temperature and stress strain, wherein the scattering frequency is 11GHz higher than the frequency of the transmission optical signal; (3) And Raman scattering, which can detect temperature and has a scattering frequency 13GHz higher than the frequency of the transmitted optical signal.
Specifically, 1) the detection system for the OPGW optical cable icing obtains a transmission optical signal of a target optical cable section in the target OPGW optical cable, and generates attenuation data corresponding to the target optical cable section based on the light intensity of the transmission optical signal; 2) The detection system for the OPGW optical cable icing separates the transmission optical signal based on the frequency of the transmission optical signal to obtain first scattering data, second scattering data and third scattering data; 3) The detection system for the OPGW optical cable icing generates vibration data corresponding to the target optical cable section based on the first scattering data; 4) The detection system for the OPGW optical cable icing generates optical fiber stress strain data corresponding to the target optical cable section based on the second scattering data; 5) And generating optical fiber temperature data corresponding to the target optical cable section by the OPGW optical cable ice coating detection system based on the third scattering data.
Wherein, 2) the detection system of OPGW optical cable icing separates the transmission optical signal based on the frequency of the transmission optical signal, obtains first scattering data, second scattering data and third scattering data, specifically includes: (1) The detection system for OPGW optical cable icing determines light waves meeting a first preset frequency in the transmission optical signals as first scattering data based on the frequency of the transmission optical signals, wherein the first preset frequency is equal to the frequency of the transmission optical signals; (2) Determining light waves which accord with a second preset frequency in the transmission light signals as second scattering data by the OPGW optical cable icing detection system, wherein the second preset frequency is greater than the first preset frequency; (3) And determining the light wave which accords with a third preset frequency in the transmission light signal as third scattering data by the OPGW optical cable icing detection system, wherein the third preset frequency is greater than the second preset frequency.
The first preset frequency corresponds to the frequency of the transmission optical signal, the frequency of the transmission optical signal can be 10GHz or 11GHz, the specific first preset frequency is determined according to the actual application scene, the second preset frequency is 11GHz greater than the first preset frequency, and the third preset frequency is 13GHz greater than the first preset frequency.
For example, the frequency of the transmission optical signal is 10GHz, that is, the first preset frequency is 10GHz, the second preset frequency is 21GHz, the third preset frequency is 23ghz, the detection system for OPGW optical cable icing determines the optical wave meeting 10GHz in the transmission optical signal as first scattering data, the detection system for OPGW optical cable icing determines the optical wave meeting 21GHz in the transmission optical signal as second scattering data, the detection system for OPGW optical cable icing determines the optical wave meeting 23GHz in the transmission optical signal as third scattering data, the detection system for OPGW optical cable icing generates vibration data corresponding to the target optical cable segment based on the first scattering data, the detection system for OPGW optical cable icing generates optical stress strain data corresponding to the target optical cable segment based on the second scattering data, and the detection system for OPGW optical cable icing generates optical temperature data corresponding to the target optical cable segment based on the third scattering data.
202. Determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data;
for example, the detection system for detecting the icing of the OPGW optical cable determines an optical fiber temperature value corresponding to the target optical cable segment based on the optical fiber temperature data, where the optical fiber temperature value is-30 ℃.
203. If the optical fiber temperature value is less than or equal to the preset temperature value, determining an attenuation value corresponding to the target optical cable section based on the attenuation data;
the preset temperature value can be minus 20 ℃ or minus 30 ℃, and the specific preset temperature value can be set according to the actual application scene. For example, the preset temperature value is-20 degrees celsius, the optical fiber temperature value is-30 degrees celsius, that is, the optical fiber temperature value is smaller than the preset temperature value, and the detection system for detecting the ice coated on the OPGW optical cable determines the attenuation value corresponding to the target optical cable section based on the attenuation data.
204. And if the attenuation value is greater than or equal to the preset attenuation value, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
For example, the preset attenuation value is 50dB/km, if the attenuation value corresponding to the target optical cable segment is 60dB/km, the attenuation value is larger than the preset attenuation value, the detection system for OPGW optical cable icing generates an icing alarm signal, and the icing alarm signal is displayed through the monitoring management platform, so that monitoring management personnel are reminded that the target optical cable segment is in an abnormal icing state.
In one possible implementation, the method includes (1) determining an optical fiber temperature value corresponding to a target optical cable segment by an OPGW optical cable ice-coating detection system based on optical fiber temperature data; (2) If the optical fiber temperature value is less than or equal to the preset temperature value, determining a vibration amplitude value corresponding to the target optical cable section by the OPGW optical cable ice-coating detection system based on the vibration data; (3) And if the vibration amplitude value is larger than or equal to the preset amplitude value, generating an icing alarm signal by the OPGW optical cable icing detection system, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
For example, the detection system for the OPGW optical cable icing determines an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data, if the optical fiber temperature value is less than or equal to a preset temperature value, the detection system for the OPGW optical cable icing determines a vibration amplitude value corresponding to the target optical cable section based on the vibration data, if the vibration amplitude value is 1000 and the preset amplitude value is 800, the vibration amplitude value is greater than the preset amplitude value, the detection system for the OPGW optical cable icing generates an icing alarm signal, and the icing alarm signal is displayed through the monitoring management platform, so that monitoring management personnel are reminded that the target optical cable section is in an abnormal icing state.
In one possible implementation, the method includes (1) determining an optical fiber temperature value corresponding to a target optical cable segment by an OPGW optical cable ice-coating detection system based on optical fiber temperature data; (2) If the optical fiber temperature value is less than or equal to the preset temperature value, the detection system of OPGW optical cable icing determines the corresponding tension value of the target optical cable section based on the optical fiber stress strain data; (3) And if the tension value is larger than or equal to the preset tension value, generating an icing alarm signal by the OPGW optical cable icing detection system, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
For example, the detection system for the OPGW optical cable icing determines an optical fiber temperature value corresponding to a target optical cable section based on optical fiber temperature data, if the optical fiber temperature value is less than or equal to a preset temperature value, the detection system for the OPGW optical cable icing determines a pulling force value corresponding to the target optical cable section based on optical fiber stress strain data, if the pulling force value is 200N and the preset pulling force value is 100N, the pulling force value is greater than or equal to the preset pulling force value, the detection system for the OPGW optical cable icing generates an icing alarm signal, and the icing alarm signal is displayed through the monitoring management platform, so that monitoring management personnel are reminded that the target optical cable section is in an abnormal icing state.
In one possible implementation, the detection system for the OPGW optical cable icing generates position information of an abnormal icing optical cable point in a target optical cable section based on attenuation data, vibration data or optical fiber stress strain data; (2) The OPGW optical cable icing detection system controls the preset ice melting equipment to melt the ice of the target optical cable segment based on the position information of the abnormal ice-coated optical cable point.
For example, the detection system for the OPGW optical cable icing generates position information of an abnormal icing optical cable point in the target optical cable segment based on attenuation data, vibration data or optical fiber stress strain data, the position information of the abnormal icing optical cable point is used for indicating the optical cable length from the OPGW optical cable detection host to the abnormal icing optical cable point, such as 100 meters, and the detection system for the OPGW optical cable icing controls the preset ice melting device to melt ice for the target optical cable segment based on the position information of the abnormal icing optical cable point.
In the embodiment of the invention, attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section are generated based on the light intensity and frequency of the optical signal transmitted in the target optical cable section, and if the attenuation data, the vibration data or the optical fiber stress strain data meet the corresponding preset conditions under the condition that the optical fiber temperature data meet the preset temperature conditions, an ice coating alarm signal is generated and used for indicating that the target optical cable section is in an abnormal ice coating state, so that the detection of the ice coating of the OPGW optical cable is realized, and the accident of line tripping or fiber breakage caused by serious ice coating of the OPGW optical cable is avoided.
With reference to fig. 3, the method for detecting the ice coating on the OPGW optical cable in the embodiment of the present invention is described above, and a device for detecting the ice coating on the OPGW optical cable in the embodiment of the present invention is described below, where an embodiment of the device for detecting the ice coating on the OPGW optical cable in the embodiment of the present invention includes:
the obtaining and generating module 301 is configured to obtain a transmission optical signal of a target optical cable segment in a target OPGW optical cable, and generate attenuation data, vibration data, optical fiber stress-strain data, and optical fiber temperature data corresponding to the target optical cable segment based on the light intensity and frequency of the transmission optical signal;
the judging module 302 is configured to judge whether the attenuation data, the vibration data, and the optical fiber stress-strain data satisfy the corresponding preset conditions if the optical fiber temperature data satisfy the preset temperature conditions;
the first signal generating module 303 is configured to generate an icing alarm signal if the attenuation data, the vibration data, or the optical fiber stress-strain data satisfy the corresponding preset conditions, where the icing alarm signal is used to indicate that the target optical cable segment is in an abnormal icing state.
In the embodiment of the invention, attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section are generated based on the light intensity and frequency of the optical signal transmitted in the target optical cable section, and if the optical fiber temperature data meets the preset temperature condition, an ice coating alarm signal is generated if the attenuation data, the vibration data or the optical fiber stress strain data meets the corresponding preset condition, and the ice coating alarm signal is used for indicating that the target optical cable section is in an abnormal ice coating state, so that the ice coating detection of the OPGW optical cable is realized, and the accidents of line tripping or fiber breaking caused by serious ice coating of the OPGW optical cable are avoided.
Referring to fig. 4, another embodiment of the apparatus for detecting ice coating on an OPGW optical cable according to an embodiment of the present invention includes:
the obtaining and generating module 301 is configured to obtain a transmission optical signal of a target optical cable segment in a target OPGW optical cable, and generate attenuation data, vibration data, optical fiber stress-strain data, and optical fiber temperature data corresponding to the target optical cable segment based on the light intensity and frequency of the transmission optical signal;
the judging module 302 is configured to judge whether the attenuation data, the vibration data, and the optical fiber stress-strain data satisfy corresponding preset conditions if the optical fiber temperature data satisfy the preset temperature conditions;
the first signal generating module 303 is configured to generate an icing alarm signal if the attenuation data, the vibration data, or the optical fiber stress-strain data satisfy the corresponding preset conditions, where the icing alarm signal is used to indicate that the target optical cable segment is in an abnormal icing state.
Optionally, the obtaining and generating module 301 includes:
the obtaining and generating unit 3011 is configured to obtain a transmission optical signal of a target optical cable segment in the target OPGW optical cable, and generate attenuation data corresponding to the target optical cable segment based on light intensity of the transmission optical signal;
a separation unit 3012, configured to separate the transmission optical signal based on a frequency of the transmission optical signal to obtain first scattering data, second scattering data, and third scattering data;
a vibration data generation unit 3013, configured to generate vibration data corresponding to the target optical cable segment based on the first scattering data;
the stress data generation unit 3014 is configured to generate optical fiber stress-strain data corresponding to the target optical cable segment based on the second scattering data;
and the temperature data generation unit 3015 is configured to generate optical fiber temperature data corresponding to the target optical fiber segment based on the third scattering data.
Optionally, the separation unit 3012 is specifically configured to:
determining light waves which accord with a first preset frequency in the transmission optical signals as first scattering data based on the frequency of the transmission optical signals, wherein the first preset frequency is equal to the frequency of the transmission optical signals;
determining light waves which accord with a second preset frequency in the transmission light signals as second scattering data, wherein the second preset frequency is greater than the first preset frequency;
and determining the light wave which accords with a third preset frequency in the transmission light signal as third scattering data, wherein the third preset frequency is greater than the second preset frequency.
Optionally, the device for detecting ice coating on the OPGW optical cable further includes:
a first temperature value determining module 304, configured to determine an optical fiber temperature value corresponding to the target optical cable segment based on the optical fiber temperature data;
an attenuation value determining module 305, configured to determine an attenuation value corresponding to the target optical cable segment based on the attenuation data if the optical fiber temperature value is less than or equal to a preset temperature value;
the second signal generating module 306 is configured to generate an ice coating alarm signal if the attenuation value is greater than or equal to the preset attenuation value, where the ice coating alarm signal is used to indicate that the target optical cable segment is in an abnormal ice coating state.
Optionally, the device for detecting ice coating on the OPGW optical cable further includes:
a second temperature value determining module 307, configured to determine an optical fiber temperature value corresponding to the target optical cable segment based on the optical fiber temperature data;
the amplitude value determining module 308 is configured to determine a vibration amplitude value corresponding to the target optical cable segment based on the vibration data if the optical fiber temperature value is less than or equal to a preset temperature value;
and a third signal generating module 309, configured to generate an icing alarm signal if the vibration amplitude value is greater than or equal to the preset amplitude value, where the icing alarm signal is used to indicate that the target optical cable segment is in an abnormal icing state.
Optionally, the device for detecting ice coating on the OPGW optical cable further includes:
a third temperature value determining module 310, configured to determine an optical fiber temperature value corresponding to the target optical cable segment based on the optical fiber temperature data;
the tension value determining module 311 is configured to determine a tension value corresponding to the target optical cable segment based on the optical fiber stress-strain data if the optical fiber temperature value is less than or equal to a preset temperature value;
a fourth signal generating module 312, configured to generate an icing alarm signal if the pulling force value is greater than or equal to the preset pulling force value, where the icing alarm signal is used to indicate that the target optical cable segment is in an abnormal icing state.
Optionally, the device for detecting ice coating on the OPGW optical cable further includes:
the position information generating module 313 is used for generating position information of an abnormal ice-coated optical cable point in the target optical cable section based on attenuation data, vibration data or optical fiber stress strain data;
and the control module 314 is configured to control the preset ice melting device to melt the ice of the target optical cable segment based on the position information of the abnormal ice-covered optical cable point.
In the embodiment of the invention, attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section are generated based on the light intensity and frequency of the optical signal transmitted in the target optical cable section, and if the attenuation data, the vibration data or the optical fiber stress strain data meet the corresponding preset conditions under the condition that the optical fiber temperature data meet the preset temperature conditions, an ice coating alarm signal is generated and used for indicating that the target optical cable section is in an abnormal ice coating state, so that the detection of the ice coating of the OPGW optical cable is realized, and the accident of line tripping or fiber breakage caused by serious ice coating of the OPGW optical cable is avoided.
Fig. 3 and 4 describe the detection apparatus for detecting ice on an OPGW optical cable in the embodiment of the present invention in detail from the perspective of a modular functional entity, and the following describes the detection system for detecting ice on an OPGW optical cable in the embodiment of the present invention in detail from the perspective of hardware processing.
Fig. 5 is a schematic structural diagram of a system for detecting ice coating on an OPGW optical cable according to an embodiment of the present invention, where the system 500 for detecting ice coating on an OPGW optical cable includes an OPGW optical cable detection host 510 and a monitoring management platform 520.
The present invention also provides a computer readable storage medium, which may be a non-volatile computer readable storage medium, and may also be a volatile computer readable storage medium, where instructions are stored in the computer readable storage medium, and when the instructions are executed on a detection system for OPGW optical cable icing, the instructions cause the detection system for OPGW optical cable icing to execute the steps of the detection method for OPGW optical cable icing.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for detecting OPGW optical cable icing is characterized by comprising the following steps:
acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable, and generating attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data corresponding to the target optical cable section on the basis of the light intensity and the frequency of the transmission optical signal, wherein the attenuation data is generated by carrying out optical cable transmission attenuation detection on the target optical cable section through optical time domain reflection, the vibration data is generated by carrying out vibration detection on the target optical cable section through phase-sensitive optical time domain reflection, the optical fiber stress strain data is generated by carrying out optical fiber stress strain detection on the target optical cable section through Brillouin optical time domain reflection, and the optical fiber temperature data is generated by carrying out temperature detection on the target optical cable section through distributed optical fiber temperature measurement;
if the optical fiber temperature data meet the preset temperature condition, judging whether the attenuation data, the vibration data and the optical fiber stress-strain data meet the corresponding preset conditions;
and if the attenuation data, the vibration data or the optical fiber stress strain data meet corresponding preset conditions, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
2. The method for detecting ice coating on an OPGW optical cable according to claim 1, wherein said obtaining a transmission optical signal of a target optical cable segment in a target OPGW optical cable and generating attenuation data, vibration data, optical fiber stress strain data, and optical fiber temperature data corresponding to the target optical cable segment based on an optical intensity and a frequency of the transmission optical signal comprises:
acquiring a transmission optical signal of a target optical cable section in a target OPGW optical cable, and generating attenuation data corresponding to the target optical cable section based on the light intensity of the transmission optical signal;
separating the transmission optical signal based on the frequency of the transmission optical signal to obtain first scattering data, second scattering data and third scattering data;
generating vibration data corresponding to the target optical cable section based on the first scattering data;
generating optical fiber stress-strain data corresponding to the target optical cable segment based on the second scattering data;
and generating optical fiber temperature data corresponding to the target optical cable section based on the third scattering data.
3. The method of claim 2, wherein the separating the transmitted optical signal based on the frequency of the transmitted optical signal to obtain first scattering data, second scattering data, and third scattering data comprises:
determining an optical wave in the transmission optical signal, which conforms to a first preset frequency, as first scattering data based on the frequency of the transmission optical signal, wherein the first preset frequency is equal to the frequency of the transmission optical signal;
determining light waves in the transmission light signals, which accord with a second preset frequency, as second scattering data, wherein the second preset frequency is greater than the first preset frequency;
and determining light waves in the transmission light signal which accord with a third preset frequency as third scattering data, wherein the third preset frequency is greater than the second preset frequency.
4. The method for detecting the icing on the OPGW optical cable according to claim 1, wherein after the obtaining the transmission optical signal of the target optical cable segment in the target OPGW optical cable and generating the attenuation data, the vibration data, the optical fiber stress-strain data and the optical fiber temperature data corresponding to the target optical cable segment based on the light intensity and the frequency of the transmission optical signal, the method further comprises:
determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data;
if the optical fiber temperature value is less than or equal to a preset temperature value, determining a loss value corresponding to the target optical cable section based on the loss data;
and if the attenuation value is greater than or equal to a preset attenuation value, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
5. The method for detecting the icing on the OPGW optical cable according to claim 1, wherein after the obtaining the transmission optical signal of the target optical cable segment in the target OPGW optical cable and generating the attenuation data, the vibration data, the optical fiber stress-strain data and the optical fiber temperature data corresponding to the target optical cable segment based on the light intensity and the frequency of the transmission optical signal, the method further comprises:
determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data;
if the optical fiber temperature value is less than or equal to a preset temperature value, determining a vibration amplitude value corresponding to the target optical cable section based on the vibration data;
and if the vibration amplitude value is larger than or equal to a preset amplitude value, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
6. The method for detecting OPGW cable icing as claimed in any one of claims 1-5, wherein after said obtaining a transmission optical signal of a target cable segment in a target OPGW cable and generating attenuation data, vibration data, fiber stress strain data and fiber temperature data corresponding to the target cable segment based on an optical intensity and a frequency of the transmission optical signal, the method further comprises:
determining an optical fiber temperature value corresponding to the target optical cable section based on the optical fiber temperature data;
if the optical fiber temperature value is less than or equal to a preset temperature value, determining a tension value corresponding to the target optical cable section based on the optical fiber stress-strain data;
and if the tension value is greater than or equal to a preset tension value, generating an icing alarm signal, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
7. The method for detecting icing on an OPGW optical cable according to claim 1, wherein after generating an icing alarm signal if the attenuation data, the vibration data or the optical fiber stress-strain data satisfy corresponding preset conditions, the method further comprises:
generating position information of an abnormal ice-coated optical cable point in the target optical cable section based on the attenuation data, the vibration data or the optical fiber stress-strain data;
and controlling preset ice melting equipment to melt the ice of the target optical cable segment based on the position information of the abnormal ice-coated optical cable point.
8. An OPGW optical cable icing detection device, characterized in that the OPGW optical cable icing detection device comprises:
the optical fiber stress-strain detection module is used for obtaining a transmission optical signal of a target optical cable segment in a target OPGW optical cable and generating attenuation data, vibration data, optical fiber stress-strain data and optical fiber temperature data corresponding to the target optical cable segment on the basis of the light intensity and the frequency of the transmission optical signal, wherein the attenuation data is generated by performing optical cable transmission attenuation detection on the target optical cable segment through optical time domain reflection, the vibration data is generated by performing vibration detection on the target optical cable segment through phase-sensitive optical time domain reflection, the optical fiber stress-strain data is generated by performing optical fiber stress-strain detection on the target optical cable segment through Brillouin optical time domain reflection, and the optical fiber temperature data is generated by performing temperature detection on the target optical cable segment through distributed optical fiber temperature measurement;
the judging module is used for judging whether the attenuation data, the vibration data and the optical fiber stress strain data meet corresponding preset conditions or not if the optical fiber temperature data meet preset temperature conditions;
the first signal generation module is used for generating an icing alarm signal if the attenuation data, the vibration data or the optical fiber stress strain data meet corresponding preset conditions, wherein the icing alarm signal is used for indicating that the target optical cable section is in an abnormal icing state.
9. An OPGW optical cable icing detection system, the OPGW optical cable icing detection system comprising: the system comprises an OPGW optical cable detection host and a monitoring management platform, wherein the monitoring management platform is used for controlling the OPGW optical cable detection host and displaying attenuation data, vibration data, optical fiber stress strain data and optical fiber temperature data;
the monitoring management platform comprises: a memory and at least one processor, the memory having instructions stored therein;
the at least one processor invokes the instructions in the memory to cause the OPGW cable icing detection system to perform the OPGW cable icing detection method of any of claims 1-7.
10. A computer readable storage medium having instructions stored thereon, wherein the instructions, when executed by a processor, implement a method for detecting ice coating on an OPGW optical cable as claimed in any one of claims 1-7.
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