CN113555965A - Online monitoring device, method and equipment for state of power transmission cable - Google Patents
Online monitoring device, method and equipment for state of power transmission cable Download PDFInfo
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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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/16—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for repairing insulation or armouring of cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
- H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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Abstract
The invention relates to an on-line monitoring device, method and equipment for the state of a power transmission cable, wherein the device is in communication connection with data processing equipment and is arranged on the power transmission cable, and comprises a power supply module, an attitude detection module, a temperature detection module and a communication module; the power supply module is used for supplying power to the attitude detection module, the temperature detection module and the communication module from electricity generation; the attitude detection module is used for acquiring three-dimensional space data of the power transmission cable in real time; the temperature detection module is used for acquiring the temperature of the power transmission cable in real time; the communication module is used for transmitting the acquired three-dimensional space data and the acquired temperature to the data processing equipment, and the data processing equipment is used for judging whether the power transmission cable is damaged at high temperature or not and is broken and monitoring the state of the power transmission cable. The device combines data processing equipment to realize carrying out real time monitoring to transmission cable's swing gesture, cable temperature condition, whether cable interrupt condition etc. and the user of being convenient for in time restores transmission cable unusual.
Description
Technical Field
The invention relates to the technical field of power transmission cables, in particular to a device, a method and equipment for monitoring the state of a power transmission cable on line.
Background
At present, a system for monitoring the state of a power transmission cable in the power industry in real time does not exist, and the swing amplitude, disconnection, temperature and other states of the cable cannot be monitored. In the power industry, the maintenance of the transmission cables is generally in hollow operation, and after the transmission cables are eroded by disasters such as typhoons, ice disasters, fire disasters and the like, the transmission cables in the power industry need to be maintained one by one, so that the work load is large, the efficiency is low, and the power supply problem cannot be timely solved. For example: when fire occurs around the high-voltage wire, the temperature of the cable cannot be rapidly monitored to judge the hidden defect danger and carry out emergency treatment in time; under the condition of disastrous weather such as typhoon, ice disaster and the like, the disconnection condition of the cable cannot be monitored, and the material scheduling and rush repair cannot be carried out in time, so that the fault time is prolonged.
Disclosure of Invention
The embodiment of the invention provides an online monitoring device, method and equipment for the state of a power transmission cable, which are used for solving the technical problems that no real-time monitoring system exists for the state of the power transmission cable and the abnormity of the power transmission cable cannot be timely repaired.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
an online monitoring device for the state of a power transmission cable is in communication connection with data processing equipment and is arranged on the power transmission cable, and comprises a power supply module, and an attitude detection module, a temperature detection module and a communication module which are connected with the power supply module;
the power supply module is used for supplying power to the attitude detection module, the temperature detection module and the communication module from electricity generation;
the attitude detection module is used for acquiring three-dimensional space data of the power transmission cable in real time;
the temperature detection module is used for collecting the temperature of the power transmission cable in real time;
the communication module is used for transmitting the acquired three-dimensional space data and the temperature to the data processing equipment;
and the data processing equipment is used for judging whether the power transmission cable is damaged at high temperature or not and is broken and monitoring the state of the power transmission cable according to the acquired three-dimensional space data and the acquired temperature.
Preferably, this on-line monitoring device of transmission line cable state passes through the stockbridge damper setting and is in on the transmission line cable, the stockbridge damper includes fastener, elastic connection spare and tup, power module sets up on the tup, power module includes elastic element, magnetic element, energy storage component and coil, magnetic element's both ends all with elastic element connects, elastic element still with the tup is connected, the coil parcel elastic element with behind the magnetic element with energy storage component connects.
Preferably, a rectifying circuit is arranged between the energy storage element and the coil connection.
Preferably, the temperature detection module collects the temperature of the power transmission cable through a temperature sensor.
Preferably, the attitude detection module acquires three-dimensional space data of the power transmission cable through a three-axis gyroscope.
Preferably, the data processing device comprises a temperature judgment submodule and a cable breakage judgment submodule;
the temperature judgment submodule is used for sending an alarm according to the condition that the temperature acquired by the temperature detection module is higher than a temperature threshold;
the cable breakage judgment submodule is used for analyzing the three-dimensional space data acquired by the attitude detection module in real time to obtain a variable angle of the power transmission cable and a variable distance of three shafts, and if the variable distance of any shaft is larger than a distance threshold value and the variable angle is larger than an angle threshold value, cable breakage occurs in the power transmission cable.
Preferably, the cable breakage judgment submodule analyzes the three-dimensional spatial data acquired by the attitude detection module in real time through MATLAB software to obtain the variable angle of the power transmission cable and the variable distance of the three axes.
Preferably, the data processing device is further configured to send an alarm message to a user according to monitoring of the state of the power transmission cable, the data processing device is a master station monitoring server or a mobile terminal, and the mobile terminal is used for the user to remotely monitor the state of the power transmission cable.
The invention also provides an online monitoring method of the state of the power transmission cable, which comprises the following steps:
acquiring temperature data and three-dimensional space data of the power transmission cable through the online monitoring device of the state of the power transmission cable;
judging whether the temperature data is higher than a temperature threshold value or not, and judging whether the power transmission cable is in a high-temperature state or not;
analyzing the three-dimensional space data by adopting MATLAB software to obtain a variable angle of the power transmission cable and a variable distance of three axes;
and if the variable distance of any axis is greater than a distance threshold value and the variable angle is greater than an angle threshold value, the power transmission cable is in a cable breaking state.
The invention also provides an online monitoring device for the state of the power transmission cable, which comprises a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the online monitoring method for the state of the power transmission cable according to instructions in the program code.
According to the technical scheme, the embodiment of the invention has the following advantages: the device is in communication connection with data processing equipment, is arranged on a power transmission cable, and comprises a power supply module, and an attitude detection module, a temperature detection module and a communication module which are connected with the power supply module; the power supply module is used for supplying power to the attitude detection module, the temperature detection module and the communication module from electricity generation; the attitude detection module is used for acquiring three-dimensional space data of the power transmission cable in real time; the temperature detection module is used for acquiring the temperature of the power transmission cable in real time; the communication module is used for transmitting the acquired three-dimensional space data and the acquired temperature to the data processing equipment, and the data processing equipment is used for judging whether the power transmission cable is damaged at high temperature or not and is broken and monitoring the state of the power transmission cable. The online monitoring device for the state of the transmission cable is combined with the data processing equipment to realize real-time monitoring on the swing posture of the transmission cable, the temperature condition of the cable, the cable interruption condition and the like, so that a user can repair the abnormity of the transmission cable in time, and the technical problem that the existing state of the transmission cable is not provided with a real-time monitoring system and the abnormity of the transmission cable cannot be repaired in time is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of an apparatus for online monitoring of the condition of a power transmission cable according to an embodiment of the present invention;
fig. 2 is a block diagram of an apparatus for on-line monitoring of the condition of a power transmission cable according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an online monitoring device for the condition of a power transmission cable disposed on a damper according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a power module of the online monitoring device for the state of a power transmission cable according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating steps of a method for online monitoring of a power cable status according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application provides an online monitoring device, method and equipment for the state of a power transmission cable, and aims to solve the technical problems that no real-time monitoring system exists for the state of the power transmission cable, and the abnormity of the power transmission cable cannot be timely repaired.
The first embodiment is as follows:
fig. 1 is a schematic diagram of an online monitoring device for a power transmission cable state according to an embodiment of the present invention, and fig. 2 is a block diagram of the online monitoring device for the power transmission cable state according to the embodiment of the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides an on-line monitoring device for a power transmission cable state, which is connected to a data processing apparatus in a communication manner and is disposed on a power transmission cable 1, and includes a power supply module 10, and an attitude detection module 20, a temperature detection module 30, and a communication module 40 connected to the power supply module 10;
the power supply module 10 is used for supplying power to the attitude detection module 20, the temperature detection module 30 and the communication module 40 from electricity generation;
the attitude detection module 20 is used for acquiring three-dimensional space data of the power transmission cable 1 in real time;
the temperature detection module 30 is used for acquiring the temperature of the power transmission cable 1 in real time;
the communication module 40 is used for transmitting the acquired three-dimensional space data and the temperature to the data processing equipment;
and the data processing equipment is used for judging whether the power transmission cable 1 is damaged at high temperature or not and monitoring the state of the power transmission cable 1 or not according to the acquired three-dimensional space data and the acquired temperature.
Fig. 3 is a schematic structural diagram of the online monitoring device for the state of the power transmission cable, which is arranged on the vibration damper according to the embodiment of the invention.
In the embodiment of the invention, as shown in fig. 1 and 3, the online monitoring device for the state of the power transmission cable is arranged on the power transmission cable 1 through the shockproof hammer 2, the shockproof hammer 2 comprises a wire clamp 3, an elastic connecting piece 4 and a hammer head 5, and the power supply module 10 is arranged on the hammer head 5. The transmission cables 1 of the power distribution network are connected through two towers 6, the online monitoring devices of the states of the transmission cables are installed on the transmission cables 1 close to the towers 6, and the online monitoring devices of the states of the transmission cables are installed at two ends of each transmission cable.
The damper 2 hermetically packages the on-line monitoring device of the state of the power transmission cable through a metal shell, so as to avoid erosion of rainwater and the like. The wire clamp 3 is rigidly connected with the power transmission cable 1, the vibration damper 2 is installed on the power transmission cable 1, and the hammer 5 is connected with the wire clamp 3 through the elastic connecting piece 4.
In the embodiment of the present invention, the power module 10 is mainly used for supplying power to the posture detection module 20, the temperature detection module 30, and the communication module 40, so as to ensure the normal operation of the posture detection module 20, the temperature detection module 30, and the communication module 40. The power module 10 can automatically generate power to realize self-sufficient power supply.
It should be noted that the power module 10 generates power automatically mainly because the on-line monitoring device of the state of the transmission cable is installed on the transmission cable 1, which is inconvenient to overhaul the transmission cable 1, and power is cut off when the on-line monitoring device of the state of the transmission cable needs to be overhauled, the on-line monitoring device of the state of the transmission cable integrates the function of the vibration damper, namely, the vibration of the hammer body of the vibration damper 2 installed at the two ends of the transmission cable 1 is utilized to buffer the swing amplitude of the transmission cable 1, and the kinetic energy of the vibration of the hammer body of the vibration damper 2 at the two ends of the transmission cable 1 is converted into electric energy, so that the power module generates power automatically, and the power problem of the on-line monitoring device of the state of the transmission cable is solved.
In the embodiment of the present invention, the posture detection module 20 is mainly used for detecting three-dimensional spatial data of the power transmission cable 1.
It should be noted that the attitude detection module 20 mainly acquires the three-dimensional spatial position variation of the power transmission cable 1 through the sensor of the three-axis gyroscope, and can display the motion trajectory of the detection point of the three-axis gyroscope through the data variation in the three directions of the X axis, the Y axis, and the Z axis, the three-axis gyroscope can swing along with the power transmission cable 1, and the acquired three-dimensional spatial data of the three-axis gyroscope can reflect the swing attitude of the power transmission cable 1.
In the embodiment of the present invention, the temperature detection module 30 is mainly used for detecting the temperature of the power transmission cable 1.
It should be noted that the temperature detection module 30 detects the temperature of the power transmission cable 1 through the temperature sensor, and since the online monitoring device of the power transmission cable state is built in the damper 2 and is wrapped by the metal shell, and the metal shell has good thermal conductivity, the temperature collected by the temperature detection module 30 mounted on the inner wall of the shell is substantially equal to the temperature of the power transmission cable 1.
In the embodiment of the invention, the data processing equipment mainly analyzes the acquired temperature data and the three-dimensional space data to judge whether the power transmission cable 1 is in a high-temperature state or a cable breaking state and monitors the state of the power transmission cable 1.
It should be noted that the data processing device is further configured to send alarm information to a user according to the state 1 of the monitoring power transmission cable, where the data processing device is a master monitoring server or a mobile terminal, and the mobile terminal is used for the user to remotely monitor the state of the power transmission cable 1. The data processing equipment sends out warning information that the power transmission cable 1 is in a high-temperature state and/or a cable broken state through the communication module, and a user can maintain the power transmission cable 1 conveniently. When selecting a communication mode, the application scene requirements of the online monitoring device of the state of the power transmission cable need to be considered, and the requirements include: the method needs a large number of terminals to access, has wide signal coverage requirements due to remote lines, is inconvenient to operate and maintain due to installation positions of the terminals, needs to reduce the power consumption of the device, and needs to reduce communication charges due to the large number of the terminals. Thus, the communication module 40 is an NB-IoT (narrowband internet of things) communication module.
The invention provides an on-line monitoring device for the state of a power transmission cable, which is in communication connection with data processing equipment and is arranged on the power transmission cable, and comprises a power supply module, and an attitude detection module, a temperature detection module and a communication module which are connected with the power supply module; the power supply module is used for supplying power to the attitude detection module, the temperature detection module and the communication module from electricity generation; the attitude detection module is used for acquiring three-dimensional space data of the power transmission cable in real time; the temperature detection module is used for acquiring the temperature of the power transmission cable in real time; the communication module is used for transmitting the acquired three-dimensional space data and the acquired temperature to the data processing equipment, and the data processing equipment is used for judging whether the power transmission cable is damaged at high temperature or not and is broken and monitoring the state of the power transmission cable. The online monitoring device for the state of the transmission cable is combined with the data processing equipment to realize real-time monitoring on the swing posture of the transmission cable, the temperature condition of the cable, the cable interruption condition and the like, so that a user can repair the abnormity of the transmission cable in time, and the technical problem that the existing state of the transmission cable is not provided with a real-time monitoring system and the abnormity of the transmission cable cannot be repaired in time is solved.
It should be noted that the online monitoring device for the state of the power transmission cable integrates the function of a vibration damper, extra spare accessories cannot be added to the power transmission cable, a communication module, an attitude detection module, a temperature detection module, a power supply module and the like are combined in the online monitoring device for the state of the power transmission cable, and the online monitoring device for the state of the power transmission cable can be combined with data nursing equipment to realize real-time monitoring on the swing attitude of the power transmission cable, the temperature condition of the cable, the cable interruption condition and the like.
Fig. 4 is a schematic structural diagram of a power module of the online monitoring device for the state of a power transmission cable according to the embodiment of the present invention.
As shown in fig. 4, in an embodiment of the present invention, the power module 10 includes an elastic element 11, a magnetic element 12, an energy storage element 13, and a coil 14, both ends of the magnetic element 12 are connected to the elastic element 11, the elastic element 11 is further connected to the hammer 5, and the coil 14 is connected to the energy storage element 13 after wrapping the elastic element 11 and the magnetic element 12. A rectifying circuit 15 is provided between the energy storage element 13 and the coil 14.
It should be noted that the elastic element 11 may be a spring, the magnetic element 12 may be a rubidium magnet, and the energy storage element 13 may be a battery, and in other embodiments, the elastic element 11, the magnetic element 12, and the energy storage element 13 may also be other elements having the same function. The rectifying circuit 15 is mainly composed of a plurality of diodes. In this embodiment, the two power modules 10 are respectively connected to the posture detection module 20, the temperature detection module 30 and the communication module 40 through elastic metal strips, and a power line wrapped by an insulating layer penetrates through the middle of each elastic metal strip for connecting the posture detection module 20, the temperature detection module 30 and the communication module 40. The power module 10 has the following self-generating working principle: when the power transmission cable 1 shakes, the power supply module 10 is driven to move, in the process of movement of the power supply module 10, the magnetic element 12 of the power supply module 10 can move up and down repeatedly, the coil 14 around the magnetic element 12 cuts a magnetic induction line generated by the magnetic element 12, current is formed, the direction of the charging current is kept consistent to charge the energy storage element 13 through the rectifying circuit 15 with 4 diodes, and finally the energy storage element 13 penetrates through the elastic metal strip through the insulated power line to be connected with the posture detection module 20, the temperature detection module 30 and the communication module 40 to supply power for the energy storage element 13.
In the embodiment of the present invention, the power module 10 may also be used for solar power generation, which is a prior art and will not be described in detail herein.
It should be noted that the power module 10 is capable of generating power, so as to achieve self-sufficiency of power supply of the on-line monitoring device for the state of the power transmission cable, and avoid the problem of replacement of an energy storage element of the on-line monitoring device for the state of the power transmission cable.
In one embodiment of the invention, the data processing equipment comprises a temperature judgment sub-module and a cable breakage judgment sub-module;
the temperature judgment submodule is used for sending an alarm according to the condition that the temperature acquired by the temperature detection module is higher than a temperature threshold value;
and the cable breakage judgment submodule is used for analyzing the three-dimensional space data acquired by the attitude detection module in real time to obtain the variable angle of the power transmission cable and the variable distance of the three axes, and if the variable distance of any one axis is greater than the distance threshold and the variable angle is greater than the angle threshold, the power transmission cable is broken.
In the embodiment of the invention, the cable breakage judgment submodule analyzes the three-dimensional space data acquired by the attitude detection module in real time through MATLAB software to obtain the variable angle of the power transmission cable and the variable distance of three axes.
It should be noted that the temperature threshold, the distance threshold and the angle threshold may be set according to requirements, and are not described in detail here.
In the embodiment of the invention, when the temperature judgment submodule can reach the temperature threshold value through the temperature, the mobile terminal sends out the acousto-optic alarm and the alarm short message. For example, when a fire disaster occurs, the alarm can be given timely to provide enough emergency time for emergency response, and the risk of the power grid is greatly reduced.
In the embodiment of the invention, the three-dimensional space data of 3 axes is mainly obtained, and the broken cable judgment sub-module simulates a position diagram of the acquisition point changing along with time through MATLAB software. The mobile terminal can visually observe the motion trail of the acquisition point. By setting distance thresholds Xmax, Ymax, Zmax for the three axis directions. When the acquired three-dimensional space data exceeds a threshold value in a corresponding direction, an alarm is generated; when: x, Y, Z, the variable distance in any direction of the axis is more than 2 meters within 3s, the motion trail diagram of the acquisition point is observed, and if the track line is found to have large-angle sudden change and the variable angle is more than 45 degrees, the power transmission cable is judged to be in a cable breaking state.
It should be noted that, in the power distribution network, the motion trajectory of the power transmission cable is detected by the online monitoring device for the state of the power transmission cable, which region is influenced by the wind power more than the wind power is indirectly determined, the risk of the power grid in the region can be evaluated in advance, and an emergency plan is made in advance. For example: data acquired by the online monitoring device for the state of the power transmission cable are analyzed and processed in the data processing equipment to obtain that the power transmission cable is in a cable breaking state, so that the post-disaster rush-repair work is accelerated, and loss caused by untimely rush-repair is avoided.
Example two:
fig. 5 is a flowchart illustrating steps of a method for online monitoring of a power cable status according to an embodiment of the present invention.
As shown in fig. 5, an embodiment of the present invention further provides an online monitoring method for a state of a power transmission cable, including the following steps:
s1, acquiring temperature data and three-dimensional space data of a power transmission cable through the online monitoring device of the state of the power transmission cable;
s2, judging whether the temperature data is higher than a temperature threshold value or not, and judging whether the power transmission cable is in a high-temperature state or not;
s3, analyzing the three-dimensional space data by adopting MATLAB software to obtain a variable angle of the power transmission cable and a variable distance of three axes;
and S4, if the variable distance of any axis is greater than the distance threshold value and the variable angle is greater than the angle threshold value, the power transmission cable is in a cable breaking state.
It should be noted that the contents of the steps in the method of the second embodiment are already described in the apparatus of the first embodiment, the contents of the steps in the online monitoring apparatus of the power cable state are already described in detail in the first embodiment, and the contents of the steps in the method are not described in detail in the second embodiment.
Example three:
the embodiment of the invention provides on-line monitoring equipment for the state of a power transmission cable, which comprises a processor and a memory, wherein the processor is used for processing the state of the power transmission cable;
a memory for storing the program code and transmitting the program code to the processor;
and the processor is used for executing the online monitoring method of the power transmission cable state according to instructions in the program codes.
It should be noted that the processor is configured to execute the steps in the above-mentioned embodiment of the method for online monitoring of the state of the power transmission cable according to the instructions in the program code. Alternatively, the processor, when executing the computer program, implements the functions of each module/unit in each system/apparatus embodiment described above.
Illustratively, a computer program may be partitioned into one or more modules/units, which are stored in a memory and executed by a processor to accomplish the present application. One or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of a computer program in a terminal device.
The terminal device may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor, a memory. Those skilled in the art will appreciate that the terminal device is not limited and may include more or fewer components than those shown, or some components may be combined, or different components, e.g., the terminal device may also include input output devices, network access devices, buses, etc.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage may be an internal storage unit of the terminal device, such as a hard disk or a memory of the terminal device. The memory may also be an external storage device of the terminal device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the terminal device. Further, the memory may also include both an internal storage unit of the terminal device and an external storage device. The memory is used for storing computer programs and other programs and data required by the terminal device. The memory may also be used to temporarily store data that has been output or is to be output.
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.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
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: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
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; 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. The on-line monitoring device for the state of the power transmission cable is characterized by being in communication connection with data processing equipment and arranged on the power transmission cable, and comprising a power supply module, and an attitude detection module, a temperature detection module and a communication module which are connected with the power supply module;
the power supply module is used for supplying power to the attitude detection module, the temperature detection module and the communication module from electricity generation;
the attitude detection module is used for acquiring three-dimensional space data of the power transmission cable in real time;
the temperature detection module is used for collecting the temperature of the power transmission cable in real time;
the communication module is used for transmitting the acquired three-dimensional space data and the temperature to the data processing equipment;
and the data processing equipment is used for judging whether the power transmission cable is damaged at high temperature or not and is broken and monitoring the state of the power transmission cable according to the acquired three-dimensional space data and the acquired temperature.
2. The device according to claim 1, wherein the device is arranged on the power transmission cable via a vibration damper, the vibration damper comprises a cable clamp, an elastic connector and a hammer head, the power module is arranged on the hammer head, the power module comprises an elastic element, a magnetic element, an energy storage element and a coil, both ends of the magnetic element are connected with the elastic element, the elastic element is further connected with the hammer head, and the coil is connected with the energy storage element after wrapping the elastic element and the magnetic element.
3. An apparatus for on-line monitoring of the condition of an electric power transmission cable according to claim 2, characterized in that a rectifying circuit is arranged between the energy storage element and the coil connection.
4. The apparatus according to claim 1, wherein the temperature detection module collects the temperature of the power transmission cable via a temperature sensor.
5. The apparatus according to claim 1, wherein said attitude detection module collects three-dimensional spatial data of the power transmission cable through a three-axis gyroscope.
6. The on-line monitoring device of the state of the power transmission cable according to claim 1, wherein the data processing apparatus includes a temperature judgment sub-module and a cable breakage judgment sub-module;
the temperature judgment submodule is used for sending an alarm according to the condition that the temperature acquired by the temperature detection module is higher than a temperature threshold;
the cable breakage judgment submodule is used for analyzing the three-dimensional space data acquired by the attitude detection module in real time to obtain a variable angle of the power transmission cable and a variable distance of three shafts, and if the variable distance of any shaft is larger than a distance threshold value and the variable angle is larger than an angle threshold value, cable breakage occurs in the power transmission cable.
7. The on-line monitoring device for the state of the power transmission cable according to claim 6, wherein the cable breakage judgment submodule analyzes three-dimensional space data acquired by the attitude detection module in real time through MATLAB software to obtain a variable angle of the power transmission cable and a variable distance of three axes.
8. The apparatus according to claim 1, wherein the data processing device is further configured to send an alarm message to a user according to the monitored state of the power transmission cable, the data processing device is a master station monitoring server or a mobile terminal, and the mobile terminal is configured to remotely monitor the state of the power transmission cable by the user.
9. An online monitoring method for the state of a power transmission cable is characterized by comprising the following steps:
collecting temperature data and three-dimensional space data of a power transmission cable by an online monitoring device of the condition of the power transmission cable according to any one of claims 1-8;
judging whether the temperature data is higher than a temperature threshold value or not, and judging whether the power transmission cable is in a high-temperature state or not;
analyzing the three-dimensional space data by adopting MATLAB software to obtain a variable angle of the power transmission cable and a variable distance of three axes;
and if the variable distance of any axis is greater than a distance threshold value and the variable angle is greater than an angle threshold value, the power transmission cable is in a cable breaking state.
10. An on-line monitoring device of the state of a power transmission cable is characterized by comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the method for online monitoring of the condition of a power transmission cable according to claim 9 according to instructions in the program code.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048387A (en) * | 2015-06-17 | 2015-11-11 | 贵州电力设计研究院 | Generating vibration damper and anti-vibration generating device for overhead transmission line |
| CN105651344A (en) * | 2016-04-06 | 2016-06-08 | 南彦勃 | Cable clamp state detection system and method |
| CN207817009U (en) * | 2017-11-17 | 2018-09-04 | 国网江苏省电力公司无锡供电公司 | A kind of transmission line of electricity external force damage prevention monitoring and alarming system |
| CN112018657A (en) * | 2020-08-03 | 2020-12-01 | 北京拓维思科技有限公司 | Live working safety protection system and method for power transmission line |
| CN112485583A (en) * | 2020-10-23 | 2021-03-12 | 邹平市供电有限公司 | Method for detecting working state of high-voltage cable |
| CN112881950A (en) * | 2021-01-14 | 2021-06-01 | 四川九通智路科技有限公司 | Cable joint temperature, voltage and position monitoring system and method |
| US20210235992A1 (en) * | 2020-01-31 | 2021-08-05 | Covidien Lp | Attached sensor activation of additionally-streamed physiological parameters from non-contact monitoring systems and associated devices, systems, and methods |
-
2021
- 2021-08-19 CN CN202110956412.2A patent/CN113555965A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048387A (en) * | 2015-06-17 | 2015-11-11 | 贵州电力设计研究院 | Generating vibration damper and anti-vibration generating device for overhead transmission line |
| CN105651344A (en) * | 2016-04-06 | 2016-06-08 | 南彦勃 | Cable clamp state detection system and method |
| CN207817009U (en) * | 2017-11-17 | 2018-09-04 | 国网江苏省电力公司无锡供电公司 | A kind of transmission line of electricity external force damage prevention monitoring and alarming system |
| US20210235992A1 (en) * | 2020-01-31 | 2021-08-05 | Covidien Lp | Attached sensor activation of additionally-streamed physiological parameters from non-contact monitoring systems and associated devices, systems, and methods |
| CN112018657A (en) * | 2020-08-03 | 2020-12-01 | 北京拓维思科技有限公司 | Live working safety protection system and method for power transmission line |
| CN112485583A (en) * | 2020-10-23 | 2021-03-12 | 邹平市供电有限公司 | Method for detecting working state of high-voltage cable |
| CN112881950A (en) * | 2021-01-14 | 2021-06-01 | 四川九通智路科技有限公司 | Cable joint temperature, voltage and position monitoring system and method |
Non-Patent Citations (2)
| Title |
|---|
| 张元军 等: "电力铁塔运行状态智能在线监测的研究及应用", 科技视界, no. 22, pages 9 - 10 * |
| 黄智刚 等: "《无人机通信与导航》", 31 August 2020, 北京航空航天大学出版社, pages: 150 - 152 * |
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