CN108036731B - Cable icing monitoring method and system - Google Patents
Cable icing monitoring method and system Download PDFInfo
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- CN108036731B CN108036731B CN201711429535.0A CN201711429535A CN108036731B CN 108036731 B CN108036731 B CN 108036731B CN 201711429535 A CN201711429535 A CN 201711429535A CN 108036731 B CN108036731 B CN 108036731B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
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- 238000012545 processing Methods 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 55
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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Abstract
The invention is applicable to the technical field of electric power, and provides a method and a system for monitoring ice coating of an electric power circuit. The method comprises the following steps: the real-time height of the cable is detected through the sensors, when the real-time height of the cable detected by the corresponding sensors is smaller than a first threshold value, the image acquisition processing device acquires current images of the cable, the icing thickness of the cable is determined according to the current images, the information transfer node receives the icing thickness determined by the image acquisition device, when the icing thickness is larger than a second threshold value, the real-time height of the cable, the icing thickness and the sensor identification are sent to the server, the server is combined with current weather information corresponding to the sensor identification to judge the icing condition of the cable, and a judgment result is sent to the maintenance personnel terminal, so that the icing condition of the cable can be detected in real time, hidden dangers of the cable can be found in time, and relevant maintenance personnel can be informed in time.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a cable icing monitoring method and system.
Background
Overhead cables are susceptible to environmental influences, particularly to icing in winter, which may cause damage to the cables and affect the safety of the lines. At present, icing detection of high-altitude cables is usually carried out in a manual observation mode, manual observation has great contingency and time intervals, and hidden dangers of the cables cannot be found in time, so that monitoring of icing thickness of the cables has vital influence on safety, reliability and stability of electric power operation.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and a system for monitoring cable icing, so as to solve the problems in the prior art that an accidental time interval and a time interval exist when the cable icing thickness is observed manually, and hidden dangers existing in the cable cannot be found in time.
The first aspect of the embodiments of the present invention provides a cable icing monitoring system, including a plurality of sensors, a plurality of image acquisition processing devices, a plurality of information transfer nodes, a server, and a plurality of maintainer terminals: the sensors correspond to the image acquisition and processing devices one by one, and the information transfer node corresponds to 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 used for detecting the real-time height of the cable; the sensors respectively correspond to cables among the telegraph poles and correspond to a sensor identifier representing position information;
the image acquisition processing device is arranged at the top of the telegraph pole and 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 icing thickness determined by the image acquisition device and sending the real-time height of the cable, the icing thickness and the sensor identification to a server when the icing thickness is greater than a second threshold value;
and the server is used for judging the icing condition of the cable according to the real-time height of the cable, the icing thickness and the sensor identification and combining the current weather information corresponding to the sensor identification, and sending the judgment result to the maintainer terminal.
Optionally, the process of determining the thickness of the ice coated on the cable by the image acquisition and processing device according to the first included angle and the preset included angle is as follows:
calculating the difference value of the first included angle and the preset included angle;
and determining the icing thickness of the cable according to the difference value and the set of the difference value and the icing thickness.
Optionally, the server determines the icing condition of the cable according to the real-time height of the cable, the icing thickness, the sensor identifier and the current weather information corresponding to the sensor identifier, and includes:
acquiring current weather information corresponding to the sensor identifier; different weather information corresponds to different icing thickness thresholds;
and judging the icing condition of the cable according to the icing thickness threshold value corresponding to the current weather information and the icing thickness.
Optionally, when the received ice thickness is greater than a second threshold, the information transfer node is further configured to send an image acquisition instruction to a corresponding image acquisition processing device; the image acquisition instruction comprises an image acquisition processing device identifier;
the image acquisition processing device acquires the current image of the cable again according to the image acquisition instruction, determines the icing thickness of the cable according to the acquired current image again, and sends the icing thickness to the information transfer node;
if the determined icing thickness is larger than the second threshold value, the information transfer node sends the real-time height of the cable, the icing thickness and the sensor identification to a server; otherwise, the information transfer node does not send the relevant information to the server.
Optionally, each maintenance worker corresponds to one preset area, and each preset area corresponds to a plurality of sensor identifiers;
and the server sends the judgment result to the corresponding maintainer terminal of the maintainer according to the corresponding relation between the sensor identifier and the maintainer.
A second aspect of an embodiment of the present invention provides a cable icing monitoring method, including:
detecting the real-time height of the cable through a sensor; the sensors respectively correspond to cables among the telegraph poles and correspond to a sensor identifier representing 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 icing thickness determined by the image acquisition device, and sends the real-time height of the cable, the icing thickness and the sensor identification to a server when the icing thickness is greater than a second threshold value;
and the server judges the icing condition of the cable according to the real-time height of the cable, the icing thickness and the sensor identification and by combining the current weather information corresponding to the sensor identification, and sends the judgment result to the maintainer terminal.
Optionally, the process of determining the thickness of the ice coating on the cable according to the first included angle and the preset included angle is as follows:
calculating the difference value of the first included angle and the preset included angle;
and determining the icing thickness of the cable according to the difference value and the set of the difference value and the icing thickness.
Optionally, the process of determining the icing condition of the cable according to the real-time height of the cable, the icing thickness and the sensor identifier and by combining the current weather information corresponding to the sensor identifier is as follows:
acquiring current weather information corresponding to the sensor identifier; different weather information corresponds to different icing thickness thresholds;
and judging the icing condition of the cable according to the icing thickness threshold value corresponding to the current weather information and the icing thickness.
Optionally, the method further includes:
when the received icing thickness is larger than a second threshold value, the information transfer node sends an image acquisition instruction to a corresponding image acquisition processing device; the image acquisition instruction comprises an image acquisition processing device identifier;
the image acquisition processing device acquires the current image of the cable again according to the image acquisition instruction, determines the icing thickness of the cable according to the acquired current image again, and sends the icing thickness to the information transfer node;
if the determined icing thickness is larger than the second threshold value, the information transfer node sends the real-time height of the cable, the icing thickness and the sensor identification to a server; otherwise, the information transfer node does not send the relevant information to the server.
Optionally, each maintenance worker corresponds to one preset area, and each preset area corresponds to a plurality of sensor identifiers;
the sending of the judgment result to the maintainer terminal specifically includes: and the server sends the judgment result to the corresponding maintainer terminal of the maintainer according to the corresponding relation between the sensor identifier and the maintainer.
In the embodiment of the invention, the sensors detect the real-time height of the cable, when the image acquisition processing device detects that the real-time height of the cable detected by the corresponding sensor is less than the first threshold value, acquiring a current image of the cable, determining a first included angle between the cable and a horizontal plane according to the current image, and determining the icing thickness of the cable according to the first included angle and a preset included angle, when the icing thickness of the information transfer node is greater than a second threshold value, the real-time height, the icing thickness and the sensor identification of the cable are sent to a server, the server combines the current weather information corresponding to the sensor identification according to the real-time height, the icing thickness and the sensor identification of the cable, the icing condition of the cable is judged, and the judgment result is sent to the maintenance personnel terminal, so that the icing condition of the cable can be detected in real time, the hidden danger of the cable can be found in time, and relevant maintenance personnel can be informed in time.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a cable ice monitoring system according to an embodiment of the present invention;
FIG. 2 is a schematic layout diagram of a sensor and an image acquisition and processing device according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a cable icing monitoring method according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating the determination of the ice coating thickness of the cable in step S102 of FIG. 3;
fig. 5 is a schematic flowchart of step S104 in fig. 3.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Example one
Fig. 1 and fig. 2 show a schematic structural diagram of a cable icing monitoring system according to an embodiment of the present invention, which is detailed as follows:
the cable icing monitoring system comprises a plurality of sensors 100, a plurality of image acquisition processing devices 200, a plurality of information transfer nodes 300, a server 400 and a plurality of maintenance personnel terminals 500. The sensors 100 correspond to the image acquisition and processing devices 200 one to one, and the information transfer node 300 corresponds to a plurality of sensors 100 and a plurality of image acquisition and processing devices 200.
The sensor 100 is arranged in the middle of the cable 502 between two adjacent poles 501 and is used for detecting the real-time height of the cable. The plurality of sensors 100 correspond to cables 502 between the plurality of utility poles 501, respectively, and correspond to a sensor identifier representing position information.
The image acquisition processing device 200 is arranged at the top of the telegraph pole 501 and is used for acquiring a current image of the cable 502 when the corresponding sensor 100 detects that the real-time height of the cable 502 is smaller than a first threshold value, determining a first included angle between the cable 502 and the horizontal plane according to the current image, and determining the ice coating thickness of the cable 502 according to the first included angle and a preset included angle. Each image acquisition processing device corresponds to one sensor.
The information relay node 300 is configured to receive the icing thickness determined by the image acquisition device 200, and send the real-time height of the cable, the icing thickness, and the sensor identifier to the server 400 when the icing thickness is greater than a second threshold.
The server 400 is configured to determine an icing condition of the cable according to the real-time height of the cable, the icing thickness, the sensor identifier and current weather information corresponding to the sensor identifier, and send a determination result to the maintainer terminal 500. The maintainer terminal 500 maintains the cable according to the determination result.
In the power line monitoring system, the sensor 100 detects the real-time height of the cable, the image acquisition processing device 200 acquires the current image of the cable 502 when the corresponding sensor 100 detects that the real-time height of the cable 502 is smaller than the first threshold, determines the first included angle between the cable 502 and the horizontal plane according to the current image, and determines the ice coating thickness of the cable 502 according to the first included angle and the preset included angle, the information transfer node 300 sends the real-time height of the cable 502, the ice coating thickness and the sensor identifier to the server 400 when the ice coating thickness is larger than the second threshold, the server 400 judges the ice coating condition of the cable 502 according to the real-time height of the cable 502, the ice coating thickness and the sensor identifier, and combines the current weather information corresponding to the sensor identifier, and sends the judgment result to the maintainer terminal 500, so that the maintainer can detect and maintain the ice coating condition of the cable in real time according to the judgment result of the maintainer terminal 500, the hidden danger of the cable can be found in time and related maintenance personnel can be informed in time.
Specifically, the sensor 100 may be a height sensor for measuring the height of the sensor 100 to the floor. Each sensor 100 corresponds to a first threshold, which is a height threshold of the cable to the ground under normal conditions, and if the height threshold is smaller than the first threshold, the cable may be covered with ice more.
The image processing apparatus 200 compares the real-time height detected by the sensor 100 with a first threshold, and acquires a current image of the cable 502 when the real-time height detected by the sensor 100 is less than the first threshold, so as to further determine the condition of the cable. In this embodiment, the image processing apparatus 200 may determine a first included angle between the cable and the horizontal plane at the current time according to the collected current image, and then determine the ice coating thickness of the cable 502 according to a relationship between the first included angle and a preset included angle. In this embodiment, the included angle refers to an included angle between a connection line between the sensor 100 and the image acquisition and processing device 200 and a horizontal plane. The preset included angle corresponds to an included angle between the cable and the ground under normal conditions, and the ice coating condition of the cable 502 can be further determined according to the relationship between the first included angle and the preset included angle.
The information transfer node 300 compares the icing thickness determined by the image acquisition and processing device 200 with a second threshold value, where the second threshold value is a safety critical value of the cable icing thickness under normal conditions. When the ice coating thickness is greater than the second threshold value, the information relay node 300 sends the real-time height of the cable 502, the ice coating thickness and the sensor identifier to the server 400, so that energy consumption caused by information transmission can be reduced, the efficiency of information transmission is improved, and the monitoring effect on the ice coating condition of the cable can be further improved.
Optionally, the process of determining the thickness of the ice coated on the cable by the image acquisition and processing device 200 according to the first included angle and the preset included angle is as follows:
calculating the difference value of the first included angle and the preset included angle;
and determining the icing thickness of the cable according to the difference value and the set of the difference value and the icing thickness.
Specifically, a set of included angles corresponding to the cable icing thickness may be set, and the set may be obtained by counting historical data, which is not described in detail. In this embodiment, a set of the difference between the first included angle and the preset included angle and the ice coating thickness is established by counting the historical data and then analyzing the corresponding relationship between the included angle between the cable and the horizontal plane and the ice coating thickness. In addition, by analyzing the corresponding relation between the included angle between the cable and the horizontal plane and the ice coating thickness, a model of the included angle between the cable and the horizontal plane and the ice coating thickness can be established, and the ice coating thickness can be determined according to the model.
Optionally, the process of the server 400 judging the ice coating condition of the cable 502 according to the real-time height of the cable 502, the ice coating thickness, the sensor identifier and the current weather information corresponding to the sensor identifier is as follows:
acquiring current weather information corresponding to the sensor identifier; different weather information corresponds to different icing thickness thresholds;
and judging the icing condition of the cable according to the icing thickness threshold value corresponding to the current weather information and the icing thickness.
Wherein the ice coating thickness threshold value is the maximum ice coating thickness of the cable for safe operation. It will be appreciated that the corresponding icing thickness thresholds are different for different weather conditions, e.g. slightly lower for worse weather (windy weather). Therefore, the icing condition of the cable is judged by combining the current weather condition, the method is more scientific, the icing condition of the cable can be more accurately monitored, and meanwhile, the labor cost can be saved to the maximum extent.
In this embodiment, the corresponding relationship between the weather condition and the icing thickness threshold may also be obtained by counting historical data, or by a simulation experiment, which is not limited thereto.
Optionally, when the received ice thickness is greater than the second threshold, the information transfer node 300 is further configured to send an image acquisition instruction to the corresponding image acquisition processing apparatus 200; the image acquisition instruction comprises an image acquisition processing device identifier.
The image acquisition processing device 200 acquires the current image of the cable again according to the image acquisition instruction, determines the ice coating thickness of the cable 502 according to the acquired current image again, and sends the ice coating thickness to the information transfer node 300.
If the determined icing thickness is greater than the second threshold value, the information transfer node 300 sends the real-time height of the cable, the icing thickness and the sensor identifier to the server 400; otherwise, the information transfer node does not send the relevant information to the server 400.
It can be understood that when the icing thickness is greater than the second threshold value, the information relay node 300 further confirms the icing thickness of the cable 502 by sending an image acquisition instruction to the corresponding image acquisition processing device 200, so that the influence of accidental factors on the icing thickness of the cable is minimized or eliminated, and the accuracy of monitoring the icing condition of the cable is improved. Further, the information relay node 300 sends the real-time height of the cable 502, the icing thickness, and the sensor identifier to the server 400 only when the determined icing thickness is greater than the second threshold value, so that energy consumption caused by information transmission can be reduced, information transmission efficiency can be improved, and a monitoring effect on the cable icing condition can be further improved.
Optionally, each maintenance person corresponds to one preset area, and each preset area corresponds to a plurality of sensor identifiers. The server 400 sends the determination result to the maintainer terminal 500 of the corresponding maintainer according to the correspondence between the sensor identifier and the maintainer.
In the power line monitoring system, the sensors 100 detect the real-time height of the cable, the image acquisition and processing device 200 acquires the current image of the cable when the corresponding sensor 100 detects that the real-time height of the cable is smaller than a first threshold value, determines a first included angle between the cable and the horizontal plane according to the current image, determines the ice coating thickness of the cable according to the first included angle and a preset included angle, and sends the real-time height of the cable, the ice coating thickness and the sensor identifier to the server 400 when the ice coating thickness is larger than a second threshold value by the information transfer node 300, the server 400 judges the ice coating condition of the cable according to the real-time height of the cable, the ice coating thickness and the sensor identifier and combines the current weather information corresponding to the sensor identifier, and sends the judgment result to the maintainer terminal 500, so that the maintainer can detect and maintain the ice coating condition of the cable in real time according to the judgment result of the maintainer terminal 500, the hidden danger of the cable can be found in time and related maintenance personnel can be informed in time.
Example two
Corresponding to the power line monitoring system described in the above embodiment, fig. 3 shows a power line monitoring method provided by the embodiment of the present invention, which is detailed as follows:
step S101, detecting the real-time height of a cable through a sensor; the sensors respectively correspond to cables among the telegraph poles and correspond to a sensor identifier representing position information.
Wherein, a sensor identification corresponds to a geographical position for representing the position of the sensor setting. The sensor 100 may be a height sensor for measuring the height of the sensor 100 to the floor. Each sensor 100 corresponds to a first threshold, which is a height threshold of the cable to the ground under normal conditions, and if the height threshold is smaller than the first threshold, the cable may be covered with ice more.
Step S102, when the corresponding sensor detects that the real-time height of the cable is smaller than a first threshold value, an 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 image processing device 200 compares the real-time height detected by the sensor 100 with a first threshold, and acquires a current image of the cable when the real-time height detected by the sensor 100 is less than the first threshold, so as to further determine the condition of the cable. In this embodiment, the image processing apparatus 200 may determine a first included angle between the cable and the horizontal plane at the current time according to the collected current image, and then determine the ice coating thickness of the cable according to a relationship between the first included angle and a preset included angle. In this embodiment, the included angle refers to an included angle between a connection line between the sensor 100 and the image capturing device 200 and a horizontal plane. The preset included angle corresponds to an included angle between the cable and the ground under a normal condition, and the ice coating condition of the cable can be further determined through the relation between the first included angle and the preset included angle.
Wherein, the process of determining the ice coating thickness of the cable according to the first included angle and the preset included angle is as follows:
calculating the difference value of the first included angle and the preset included angle;
and determining the icing thickness of the cable according to the difference value and the set of the difference value and the icing thickness.
Specifically, a set of included angles corresponding to the cable icing thickness may be set, and the set may be obtained by counting historical data, which is not described in detail. In this embodiment, a set of the difference between the first included angle and the preset included angle and the ice coating thickness is established by counting the historical data and then analyzing the corresponding relationship between the included angle between the cable and the horizontal plane and the ice coating thickness. In addition, by analyzing the corresponding relation between the included angle between the cable and the horizontal plane and the ice coating thickness, a model of the included angle between the cable and the horizontal plane and the ice coating thickness can be established, and the ice coating thickness can be determined according to the model.
And S103, receiving the icing thickness determined by the image acquisition device by the information transfer node, and sending the real-time height of the cable, the icing thickness and the sensor identification to a server when the icing thickness is greater than a second threshold value.
And the second threshold is a safety critical value of the cable icing thickness under the normal condition. And the information transfer node compares the icing thickness obtained in the step S102 with a second threshold value, and when the icing thickness is greater than the second threshold value, the real-time height of the cable, the icing thickness and the sensor identification are sent to a server, so that the energy consumption caused by information transmission can be reduced, the efficiency of information transmission is improved, and the monitoring effect on the icing condition of the cable can be further improved.
Step S104, the server judges the icing condition of the cable according to the real-time height of the cable, the icing thickness and the sensor identification and by combining the current weather information corresponding to the sensor identification, and sends the judgment result to the maintainer terminal
Referring to fig. 4, in an embodiment, the process of determining the ice coating condition of the cable according to the real-time height of the cable, the ice coating thickness, and the sensor identifier and by combining the current weather information corresponding to the sensor identifier is as follows:
step S201, obtaining current weather information corresponding to the sensor identifier; and the icing thickness thresholds corresponding to different weather information are different.
And S202, judging the icing condition of the cable according to the icing thickness threshold corresponding to the current weather information and the icing thickness.
Wherein the ice coating thickness threshold value is the maximum ice coating thickness of the cable for safe operation. It will be appreciated that the corresponding icing thickness thresholds are different for different weather conditions, e.g. slightly lower for worse weather (windy weather). Therefore, the icing condition of the cable is judged by combining the current weather condition, the method is more scientific, the icing condition of the cable can be more accurately monitored, and meanwhile, the labor cost can be saved to the maximum extent.
In this embodiment, the corresponding relationship between the weather condition and the icing thickness threshold may also be obtained by counting historical data, or by a simulation experiment, which is not limited thereto.
Referring to fig. 5, in an embodiment, the method for monitoring cable icing may further include:
step S301, when the received icing thickness is larger than a second threshold value, the information transfer node sends an image acquisition instruction to a corresponding image acquisition processing device; the image acquisition instruction comprises an image acquisition processing device identifier.
And step S302, the image acquisition processing device acquires the current image of the cable again according to the image acquisition instruction, determines the icing thickness of the cable according to the acquired current image again, and sends the icing thickness to the information transfer node.
Step S303, if the determined icing thickness is larger than the second threshold value, the information transfer node sends the real-time height of the cable, the icing thickness and the sensor identifier to a server; otherwise, the information transfer node does not send the relevant information to the server.
It can be understood that when the icing thickness of the information transfer node is greater than the second threshold value, the information transfer node sends an image acquisition instruction to the corresponding image acquisition processing device to further confirm the icing thickness of the cable, so that the influence of accidental factors on the icing thickness of the cable is minimized or eliminated, and the accuracy of monitoring the icing condition of the cable is improved. Furthermore, the information transfer node sends the real-time height of the cable, the icing thickness and the sensor identification to the server only when the determined icing thickness is larger than the second threshold value, so that energy consumption caused by information transmission can be reduced, the efficiency of information transmission is improved, and the monitoring effect on the icing condition of the cable can be further improved.
In the power line monitoring method, the sensors detect the real-time height of the cable, the image acquisition processing device acquires the current image of the cable when the corresponding sensors detect that the real-time height of the cable is smaller than a first threshold value, determines a first included angle between the cable and the horizontal plane according to the current image, determines the ice coating thickness of the cable according to the first included angle and a preset included angle, and sends the real-time height of the cable, the ice coating thickness and the sensor identification to the server when the ice coating thickness of the cable is larger than a second threshold value by the information transfer node, the server judges the ice coating condition of the cable according to the real-time height of the cable, the ice coating thickness and the sensor identification and combines the current weather information corresponding to the sensor identification, and sends the judgment result to the maintainer terminal, so that the maintainer can detect and maintain the ice coating condition of the cable in real time according to the judgment result of the maintainer, the hidden danger of the cable can be found in time and related maintenance personnel can be informed in time.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a cable icing monitoring system which characterized in that, includes a plurality of sensors, a plurality of image acquisition processing apparatus, a plurality of information transfer node, server and a plurality of maintainer terminal: the sensors correspond to the image acquisition and processing devices one by one, and the information transfer node corresponds to 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 used for detecting the real-time height of the cable; the sensors respectively correspond to cables among the telegraph poles and correspond to a sensor identifier representing position information;
the image acquisition processing device is arranged at the top of the telegraph pole and 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 icing thickness determined by the image acquisition device and sending the real-time height of the cable, the icing thickness and the sensor identification to a server when the icing thickness is greater than a second threshold value;
and the server is used for judging the icing condition of the cable according to the real-time height of the cable, the icing thickness and the sensor identification and combining the current weather information corresponding to the sensor identification, and sending the judgment result to the maintainer terminal.
2. The cable icing monitoring system of claim 1, wherein the process of determining the icing thickness of the cable by the image acquisition processing device according to the first included angle and the preset included angle is as follows:
calculating the difference value of the first included angle and the preset included angle;
and determining the icing thickness of the cable according to the difference value and the set of the difference value and the icing thickness.
3. The cable icing monitoring system of claim 1, wherein the server determines the icing condition of the cable according to the real-time height of the cable, the icing thickness, the sensor identifier and the current weather information corresponding to the sensor identifier by:
acquiring current weather information corresponding to the sensor identifier; different weather information corresponds to different icing thickness thresholds;
and judging the icing condition of the cable according to the icing thickness threshold value corresponding to the current weather information and the icing thickness.
4. The cable icing monitoring system of claim 1, wherein the information relay node is further configured to send an image acquisition instruction to a corresponding image acquisition processing device when the received icing thickness is greater than a second threshold value; the image acquisition instruction comprises an image acquisition processing device identifier;
the image acquisition processing device acquires the current image of the cable again according to the image acquisition instruction, determines the icing thickness of the cable according to the acquired current image again, and sends the icing thickness to the information transfer node;
if the determined icing thickness is larger than the second threshold value, the information transfer node sends the real-time height of the cable, the icing thickness and the sensor identification to a server; otherwise, the information transfer node does not send the relevant information to the server.
5. The cable icing monitoring system of any one of claims 1 to 4 wherein each maintenance person corresponds to a predetermined area, each predetermined area corresponding to a plurality of sensor identifications;
and the server sends the judgment result to the corresponding maintainer terminal of the maintainer according to the corresponding relation between the sensor identifier and the maintainer.
6. A method of cable icing monitoring, comprising:
detecting the real-time height of the cable through a sensor; the sensors respectively correspond to cables among the telegraph poles and correspond to a sensor identifier representing 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 icing thickness determined by the image acquisition device, and sends the real-time height of the cable, the icing thickness and the sensor identification to a server when the icing thickness is greater than a second threshold value;
and the server judges the icing condition of the cable according to the real-time height of the cable, the icing thickness and the sensor identification and by combining the current weather information corresponding to the sensor identification, and sends the judgment result to the maintenance personnel terminal.
7. The method for monitoring cable icing as claimed in claim 6, wherein the process of determining the icing thickness of the cable according to the first angle and the preset angle comprises:
calculating the difference value of the first included angle and the preset included angle;
and determining the icing thickness of the cable according to the difference value and the set of the difference value and the icing thickness.
8. The method for monitoring the icing of the cable according to claim 6, wherein the process of judging the icing condition of the cable according to the real-time height of the cable, the icing thickness and the sensor identifier and the current weather information corresponding to the sensor identifier comprises the following steps:
acquiring current weather information corresponding to the sensor identifier; different weather information corresponds to different icing thickness thresholds;
and judging the icing condition of the cable according to the icing thickness threshold value corresponding to the current weather information and the icing thickness.
9. The cable icing monitoring method of claim 6, further comprising:
when the received icing thickness is larger than a second threshold value, the information transfer node sends an image acquisition instruction to a corresponding image acquisition processing device; the image acquisition instruction comprises an image acquisition processing device identifier;
the image acquisition processing device acquires the current image of the cable again according to the image acquisition instruction, determines the icing thickness of the cable according to the acquired current image again, and sends the icing thickness to the information transfer node;
if the determined icing thickness is larger than the second threshold value, the information transfer node sends the real-time height of the cable, the icing thickness and the sensor identification to a server; otherwise, the information transfer node does not send the relevant information to the server.
10. The cable icing monitoring method of any one of claims 6 to 9, wherein each maintenance person corresponds to a preset area, and each preset area corresponds to a plurality of sensor identifications;
the sending of the judgment result to the maintainer terminal specifically includes: and the server sends the judgment result to the corresponding maintainer terminal of the maintainer according to the corresponding relation between the sensor identifier and the maintainer.
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| CN111696097A (en) * | 2020-06-15 | 2020-09-22 | 国网山东省电力公司平邑县供电公司 | Cable on-line monitoring method and device |
| CN112116246B (en) * | 2020-09-18 | 2022-12-09 | 青岛海信网络科技股份有限公司 | Risk processing method and device |
| CN114113089A (en) * | 2021-11-22 | 2022-03-01 | 深圳供电局有限公司 | Cable icing monitoring system and method |
| CN115897025B (en) * | 2022-12-22 | 2023-06-09 | 江苏天鸟高新技术股份有限公司 | Thickness monitoring system, method and storage medium for high-thickness flat fabric loom |
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