CN111668937B - Monitoring method and monitoring system for icing of optical fiber composite overhead ground wire - Google Patents
Monitoring method and monitoring system for icing of optical fiber composite overhead ground wire Download PDFInfo
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- CN111668937B CN111668937B CN202010547821.2A CN202010547821A CN111668937B CN 111668937 B CN111668937 B CN 111668937B CN 202010547821 A CN202010547821 A CN 202010547821A CN 111668937 B CN111668937 B CN 111668937B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention belongs to the technical field of power monitoring, and particularly relates to a monitoring method and a monitoring system for icing of an optical fiber composite overhead ground wire. The method for monitoring the icing of the optical fiber composite overhead ground wire comprises the following steps: s1, erecting a ground wire composite optical cable on ground wire hanging points of at least two adjacent power towers, wherein at least one monitoring point is arranged in the length direction of the optical cable; s2, each monitoring point of the optical fiber sensor uploads the obtained data to a cloud processor at a specified time interval, and the cloud processor compares the current obtained data with the previous obtained data; and S3, if the current obtained data of the cloud processor is larger than the previous obtained data, judging that the thickness of the ice coating is increased, and calculating a difference value between the current obtained data and the previous obtained data by the cloud processor. The invention provides a monitoring method for icing of an optical fiber composite overhead ground wire, which is simple to operate and has no need of complex calculation of data.
Description
Technical Field
The invention belongs to the technical field of power monitoring, and particularly relates to a monitoring method and a monitoring system for icing of an optical fiber composite overhead ground wire.
Background
The optical fiber composite overhead ground wire (OPGW) is an important cable in the transmission line of China, and the OPGW plays a role of an optical fiber carrier of a power system communication network and also plays a role of a lightning conductor.
In winter, transmission lines in certain areas of the south of China are easy to be iced. If the ice coating condition of the OPGW is too serious, the situation such as the cable of the OPGW is broken and the tower is toppled may occur, thereby causing serious power transmission accidents.
Therefore, to monitor the icing condition, the means for monitoring the icing is currently that a weighing device for monitoring the weight of the line is arranged on a power transmission line and some wire poles, the weight change of an optical cable is equivalently converted into the thickness weight of the icing, and in addition, means such as camera video monitoring are assisted.
The existing cable icing monitoring method comprises the following steps:
a method of monitoring ice coating on a cable, comprising: detecting the real-time height of the cable through a sensor; the plurality of sensors respectively correspond to cables among the plurality of telegraph poles and correspond to a sensor identifier for representing the position information;
when the corresponding sensor detects that the real-time height of the cable is smaller than a first threshold value, the image acquisition processing device acquires a current image of the cable, determines a first included angle between the cable and a horizontal plane according to the current image, and determines the ice coating thickness of the cable according to the first included angle and a preset included angle; each image acquisition processing device corresponds to one sensor;
the information transfer node receives the ice coating thickness determined by the image acquisition device, and when the ice coating thickness is larger than a second threshold value, the real-time height of the cable, the ice coating thickness and the sensor identification are sent to a server;
and the server judges the ice covering condition of the cable according to the real-time height of the cable, the ice covering thickness and the sensor identifier and by combining current weather information corresponding to the sensor identifier, and sends a judging result to the maintainer terminal.
The existing cable icing monitoring system comprises a plurality of sensors, a plurality of image acquisition and processing devices, a plurality of information transfer nodes, a server and a plurality of maintenance personnel terminals: the sensors are in one-to-one correspondence with the image acquisition and processing devices, and the information transfer nodes are in correspondence with the plurality of sensors and the plurality of image acquisition and processing devices;
the sensor is arranged in the middle of the cable between two adjacent telegraph poles and is used for detecting the real-time height of the cable;
the plurality of sensors respectively correspond to cables among the plurality of telegraph poles and correspond to a sensor identifier for representing the position information;
the image acquisition processing device is arranged at the top of the telegraph pole and is used for acquiring a current image of the cable when the corresponding sensor detects that the real-time height of the cable is smaller than a first threshold value, determining a first included angle between the cable and the horizontal plane according to the current image and determining the ice coating thickness of the cable according to the first included angle and a preset included angle; each image acquisition processing device corresponds to one sensor;
the information transfer node is used for receiving the ice coating thickness determined by the image acquisition device and sending the real-time height of the cable, the ice coating thickness and the sensor identifier to a server when the ice coating thickness is larger than a second threshold value;
the server is used for judging the ice covering condition of the cable according to the real-time height of the cable, the ice covering thickness and the sensor identification and combining current weather information corresponding to the sensor identification, and sending a judging result to the maintainer terminal.
However, the above-mentioned monitoring methods and systems are complex, and the monitoring data are not accurate and visual enough. In recent years, distributed optical fiber sensing technology has been greatly developed. The technology can be used for sensing and measuring the temperature, the strain and the vibration information of the optical fiber line of tens kilometers or even hundreds kilometers. Considering that the structure of the OPGW is built-in with an optical fiber, our design will use the built-in optical fiber as a sensor to monitor the OPGW for long distance icing.
Disclosure of Invention
The invention aims to provide a monitoring method for icing of an optical fiber composite overhead ground wire, which is simple to operate and has no need of complex calculation of data. For this purpose, the invention adopts the following technical scheme:
the method for monitoring the icing of the optical fiber composite overhead ground wire comprises the following steps:
s1, erecting a ground wire composite optical cable on ground wire hanging points of at least two adjacent power towers, wherein at least one monitoring point is arranged in the length direction of the optical cable;
s2, each monitoring point of the optical fiber sensor uploads the obtained data to a cloud processor at a specified time interval, and the cloud processor compares the current obtained data with the previous obtained data;
s3, if the current obtained data of the cloud processor is larger than the previous obtained data, judging that the ice coating thickness is increased, and calculating a difference value between the current obtained data and the previous obtained data by the cloud processor, wherein the difference value is marked as a; or (b)
If the current obtained data of the cloud processor is not greater than the previous obtained data, judging that the ice coating thickness is unchanged or reduced, and at the moment, the cloud processor does not send out a working instruction and only stores the current obtained data;
s4, if the step S3 is carried out, judging the magnitude of the ice coating thickness increment value preset by the a and the cloud processor, and if the a is smaller than the preset ice coating thickness increment value, the cloud processor does not send out a working instruction and only stores the currently obtained data; or (b)
If a is equal to or greater than a preset icing thickness increment value, the cloud processor sends out a working instruction, and the handheld terminal is given a prompt warning.
On the basis of adopting the technical scheme, the invention can also adopt the following further technical scheme:
in the step S1, the optical cable is further coated with a protective film.
In the step S1, the optical fiber sensor is provided with at least three monitoring points at non-equidistant intervals in the length direction of the optical cable, and the distance between each two adjacent monitoring points is sequentially increased or sequentially decreased from the initial monitoring point.
In step S1, the optical fiber sensor is provided with seven monitoring points at non-equidistant intervals in the length direction of the optical cable, the distance between each two adjacent monitoring points gradually increases from the initial monitoring point and then gradually decreases, and the distance between the third monitoring point and the fourth monitoring point is the same as the distance between the fourth monitoring point and the fifth monitoring point and is the maximum interval distance.
In the step S2, the specified time interval is 5 minutes to 2 hours.
The protective film comprises the following components in percentage by weight: 15-30% of paraffin, 4-5% of tolyltriazole sodium, 4-5% of fulvic acid, 30-50% of ethylene glycol, 1-2% of acetic acid and the balance of film forming agent.
Further, the invention also provides the following technical scheme:
the monitoring system for the icing of the optical fiber composite overhead ground wire is suitable for the monitoring method and comprises the following steps of:
the cloud processor is used for storing and processing data and sending out working instructions;
the handheld terminal is used for receiving the working instruction sent by the cloud processor and displaying prompt warning information;
the optical fiber sensor is used for sensing the strain change of the optical cable and sending the value to the cloud processor.
The cloud processor further comprises a data clearing module, wherein the data clearing module is used for deleting the stored data of the cloud processor in a set period.
The handheld terminal is one or more of a mobile phone, a tablet personal computer, a smart watch, a smart panel and a Bluetooth headset.
The data clearing module of the cloud processor is set to be 30 days to 1 year in period.
The invention has the advantages that: through the arrangement of the optical fiber sensor composite optical cable, the ground wire icing condition can be monitored by a simple method and a simple system, so that the monitoring data are timely, detailed and accurate, and personalized customization can be performed according to actual needs. Meanwhile, the coated protective film can resist adverse effects of low temperature, sun and moisture on the optical cable, so that the service life of the optical cable is greatly prolonged.
Detailed Description
The invention provides a method and a system for monitoring ice coating of an optical fiber composite overhead ground wire, which are further described by combining specific embodiments.
An embodiment one, a monitoring system of optical fiber composite overhead ground wire icing, including electric connection each other:
the cloud processor is used for storing and processing data and sending out working instructions;
the data clearing module is used for deleting the stored data of the cloud processor in a set period; wherein, the set period is 30 days;
the handheld terminal is used for receiving the working instruction sent by the cloud processor and displaying prompt warning information; the handheld terminal is a mobile phone;
the optical fiber sensor is used for sensing the strain change of the optical cable and sending the value to the cloud processor.
The method for monitoring the icing of the optical fiber composite overhead ground wire comprises the following steps:
s1, erecting a ground wire composite optical cable on ground wire hanging points of at least two adjacent power towers, wherein two monitoring points are arranged in the length direction of the optical cable.
Further, the optical cable is also coated with a protective film, and the protective film comprises the following components in percentage: 15% of paraffin, 4% of tolyltriazole sodium, 4% of fulvic acid, 50% of glycol, 1% of acetic acid and the balance of film forming agent.
And S2, uploading the obtained data to a cloud processor at a specified time interval by each monitoring point of the optical fiber sensor, and comparing the current obtained data with the previous obtained data by the cloud processor.
Further, the specified time interval is 5 minutes.
S3, if the current obtained data of the cloud processor is larger than the previous obtained data, judging that the ice coating thickness is increased, and calculating a difference value between the current obtained data and the previous obtained data by the cloud processor, wherein the difference value is marked as a; or (b)
If the current obtained data of the cloud processor is not greater than the previous obtained data, the icing thickness is judged to be unchanged or reduced, and at the moment, the cloud processor does not send out a working instruction and only stores the current obtained data.
S4, if the step S3 is carried out, judging the magnitude of the ice coating thickness increment value preset by the a and the cloud processor, and if the a is smaller than the preset ice coating thickness increment value, the cloud processor does not send out a working instruction and only stores the currently obtained data; or (b)
If a is equal to or greater than a preset icing thickness increment value, the cloud processor sends out a working instruction, and the handheld terminal is given a prompt warning.
In a second embodiment, a monitoring system for icing an optical fiber composite overhead ground wire includes:
the cloud processor is used for storing and processing data and sending out working instructions;
the data clearing module is used for deleting the stored data of the cloud processor in a set period; wherein, the set period is 60 days;
the handheld terminal is used for receiving the working instruction sent by the cloud processor and displaying prompt warning information; the handheld terminal is an intelligent panel;
the optical fiber sensor is used for sensing the strain change of the optical cable and sending the value to the cloud processor.
The method for monitoring the icing of the optical fiber composite overhead ground wire comprises the following steps:
s1, erecting a ground wire composite optical cable on ground wire hanging points of at least two adjacent power towers, wherein three monitoring points are arranged in the length direction of the optical cable.
Further, the optical cable is also coated with a protective film, and the protective film comprises the following components in percentage: 30% of paraffin, 5% of tolyltriazole sodium, 5% of fulvic acid, 30% of glycol, 2% of acetic acid and the balance of film forming agent.
Further, the optical fiber sensor is provided with three monitoring points at non-equidistant intervals in the length direction of the optical cable, and the distance between every two adjacent monitoring points is sequentially increased from the initial monitoring point.
And S2, uploading the obtained data to a cloud processor at a specified time interval by each monitoring point of the optical fiber sensor, and comparing the current obtained data with the previous obtained data by the cloud processor.
Further, the specified time interval is 10 minutes.
S3, if the current obtained data of the cloud processor is larger than the previous obtained data, judging that the ice coating thickness is increased, and calculating a difference value between the current obtained data and the previous obtained data by the cloud processor, wherein the difference value is marked as a; or (b)
If the current obtained data of the cloud processor is not greater than the previous obtained data, the icing thickness is judged to be unchanged or reduced, and at the moment, the cloud processor does not send out a working instruction and only stores the current obtained data.
S4, if the step S3 is carried out, judging the magnitude of the ice coating thickness increment value preset by the a and the cloud processor, and if the a is smaller than the preset ice coating thickness increment value, the cloud processor does not send out a working instruction and only stores the currently obtained data; or (b)
If a is equal to or greater than a preset icing thickness increment value, the cloud processor sends out a working instruction, and the handheld terminal is given a prompt warning.
Embodiment three, a monitoring system of optical fiber composite overhead ground wire icing, including mutual electric connection:
the cloud processor is used for storing and processing data and sending out working instructions;
the data clearing module is used for deleting the stored data of the cloud processor in a set period; wherein, the set period is 180 days;
the handheld terminal is used for receiving the working instruction sent by the cloud processor and displaying prompt warning information; the handheld terminal is a tablet personal computer;
the optical fiber sensor is used for sensing the strain change of the optical cable and sending the value to the cloud processor.
The method for monitoring the icing of the optical fiber composite overhead ground wire comprises the following steps:
s1, erecting a ground wire composite optical cable on ground wire hanging points of at least two adjacent power towers, wherein ten monitoring points are arranged in the length direction of the optical cable.
Further, the optical cable is also coated with a protective film, and the protective film comprises the following components in percentage: 20% of paraffin, 4.5% of tolyltriazole sodium, 4.5% of fulvic acid, 40% of ethylene glycol, 1.5% of acetic acid and the balance of film forming agent.
Further, ten monitoring points are arranged on the optical fiber sensor in a non-equidistant mode in the length direction of the optical fiber cable, and the distance between every two adjacent monitoring points is sequentially reduced from the initial monitoring point.
And S2, uploading the obtained data to a cloud processor at a specified time interval by each monitoring point of the optical fiber sensor, and comparing the current obtained data with the previous obtained data by the cloud processor.
Further, the specified time interval is 1 hour.
S3, if the current obtained data of the cloud processor is larger than the previous obtained data, judging that the ice coating thickness is increased, and calculating a difference value between the current obtained data and the previous obtained data by the cloud processor, wherein the difference value is marked as a; or (b)
If the current obtained data of the cloud processor is not greater than the previous obtained data, the icing thickness is judged to be unchanged or reduced, and at the moment, the cloud processor does not send out a working instruction and only stores the current obtained data.
S4, if the step S3 is carried out, judging the magnitude of the ice coating thickness increment value preset by the a and the cloud processor, and if the a is smaller than the preset ice coating thickness increment value, the cloud processor does not send out a working instruction and only stores the currently obtained data; or (b)
If a is equal to or greater than a preset icing thickness increment value, the cloud processor sends out a working instruction, and the handheld terminal is given a prompt warning.
In a fourth embodiment, a monitoring system for icing an optical fiber composite overhead ground wire includes:
the cloud processor is used for storing and processing data and sending out working instructions;
the data clearing module is used for deleting the stored data of the cloud processor in a set period; wherein, the set period is 1 year;
the handheld terminal is used for receiving the working instruction sent by the cloud processor and displaying prompt warning information; the handheld terminal is a mobile phone and a Bluetooth headset;
the optical fiber sensor is used for sensing the strain change of the optical cable and sending the value to the cloud processor.
The method for monitoring the icing of the optical fiber composite overhead ground wire comprises the following steps:
s1, erecting a ground wire composite optical cable on ground wire hanging points of at least two adjacent power towers, wherein seven monitoring points are arranged in the length direction of the optical cable.
Further, the optical cable is also coated with a protective film, and the protective film comprises the following components in percentage: 25% of paraffin, 4% of tolyltriazole sodium, 5% of fulvic acid, 45% of glycol, 2% of acetic acid and the balance of film forming agent.
Further, the optical fiber sensor is provided with seven monitoring points at non-equidistant intervals in the length direction of the optical cable, the distance between every two adjacent monitoring points is gradually increased from the initial monitoring point and then gradually reduced, and the distance between the third monitoring point and the fourth monitoring point is the same as the distance between the fourth monitoring point and the fifth monitoring point and is the maximum interval distance.
And S2, uploading the obtained data to a cloud processor at a specified time interval by each monitoring point of the optical fiber sensor, and comparing the current obtained data with the previous obtained data by the cloud processor.
Further, the specified time interval is 2 hours.
S3, if the current obtained data of the cloud processor is larger than the previous obtained data, judging that the ice coating thickness is increased, and calculating a difference value between the current obtained data and the previous obtained data by the cloud processor, wherein the difference value is marked as a; or (b)
If the current obtained data of the cloud processor is not greater than the previous obtained data, the icing thickness is judged to be unchanged or reduced, and at the moment, the cloud processor does not send out a working instruction and only stores the current obtained data.
S4, if the step S3 is carried out, judging the magnitude of the ice coating thickness increment value preset by the a and the cloud processor, and if the a is smaller than the preset ice coating thickness increment value, the cloud processor does not send out a working instruction and only stores the currently obtained data; or (b)
If a is equal to or greater than a preset icing thickness increment value, the cloud processor sends out a working instruction, and the handheld terminal is given a prompt warning.
The optical fiber sensor according to the above embodiment is constituted by at least one optical fiber laid on at least a part of a bendable detection object, and arranged in a long direction of the detection object in a detection object range which is the at least a part of the detection object, and having 1 or more detection units for detecting a state of the detection object range, wherein the optical fiber sensor is capable of detecting a state of the detection object range of the detection object by detecting the at least one optical fiber, and wherein an inflection point of a shape of the detection object range which is assumed based on a shape obtainable by the detection object range or a state detectable by the detection object range is assumed as an assumed inflection point, and the at least 1 optical fiber has the number of the assumed inflection points+1 or more of the detection units.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the appended claims, and the technical aspects described in the foregoing embodiments may be modified or equivalents substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (6)
1. The method for monitoring the icing of the optical fiber composite overhead ground wire is characterized by comprising the following steps of:
s1, erecting a ground wire composite optical cable on ground wire hanging points of at least two adjacent power towers, wherein at least one monitoring point is arranged in the length direction of the optical cable; the optical cable is also coated with a protective film;
s2, each monitoring point of the optical fiber sensor uploads the obtained data to a cloud processor at a specified time interval, and the cloud processor compares the current obtained data with the previous obtained data;
s3, if the current obtained data of the cloud processor is larger than the previous obtained data, judging that the ice coating thickness is increased, and calculating a difference value between the current obtained data and the previous obtained data by the cloud processor, wherein the difference value is marked as a; or (b)
If the current obtained data of the cloud processor is not greater than the previous obtained data, judging that the ice coating thickness is unchanged or reduced, and at the moment, the cloud processor does not send out a working instruction and only stores the current obtained data;
s4, if the step S3 is carried out, judging the magnitude of the ice coating thickness increment value preset by the a and the cloud processor, and if the a is smaller than the preset ice coating thickness increment value, the cloud processor does not send out a working instruction and only stores the currently obtained data; or (b)
If a is equal to or greater than a preset icing thickness increment value, the cloud processor sends out a working instruction, and gives a prompting warning to the handheld terminal;
in the step S1, the optical fiber sensor is provided with at least three monitoring points at non-equal intervals in the length direction of the optical cable, and the distance between every two adjacent monitoring points is sequentially increased or sequentially decreased from the initial monitoring point;
in the step S1, seven monitoring points are arranged in the optical fiber sensor at non-equidistant intervals in the length direction of the optical fiber cable, the distance between every two adjacent monitoring points gradually increases from the initial monitoring point and then gradually decreases, and the distance between the third monitoring point and the fourth monitoring point is the same as the distance between the fourth monitoring point and the fifth monitoring point and is the maximum interval distance;
the protective film comprises the following components in percentage by weight: 15-30% of paraffin, 4-5% of tolyltriazole sodium, 4-5% of fulvic acid, 30-50% of glycol, 1-2% of acetic acid and the balance of film forming agent.
2. The method for monitoring ice coating of an optical fiber composite overhead ground wire according to claim 1, wherein in the step S2, the specified time interval is 2 to 6 hours.
3. A monitoring system for icing of an optical fiber composite overhead ground wire, which is suitable for the monitoring method as claimed in any one of claims 1-2, and is characterized in that the monitoring system comprises the following components electrically connected with each other:
the cloud processor is used for storing and processing data and sending out working instructions;
the handheld terminal is used for receiving the working instruction sent by the cloud processor and displaying prompt warning information;
the optical fiber sensor is used for sensing the strain change of the optical cable and sending the value to the cloud processor.
4. The monitoring system for icing of an optical fiber composite overhead ground wire according to claim 3, wherein the cloud processor further comprises a data clearing module for deleting stored data of the cloud processor in a set period.
5. The monitoring system for icing of the optical fiber composite overhead ground wire according to claim 3, wherein the handheld terminal is one or more of a mobile phone, a tablet computer, a smart watch, a smart panel and a Bluetooth headset.
6. The monitoring system for icing of an optical fiber composite overhead ground wire according to claim 5, wherein the data clearing module of the cloud processor is set to have a period of 30 days to 1 year.
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