CN115389855A - Method and system for monitoring cable equipment - Google Patents
Method and system for monitoring cable equipment Download PDFInfo
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- CN115389855A CN115389855A CN202211318325.5A CN202211318325A CN115389855A CN 115389855 A CN115389855 A CN 115389855A CN 202211318325 A CN202211318325 A CN 202211318325A CN 115389855 A CN115389855 A CN 115389855A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
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- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y10/00—Economic sectors
- G16Y10/35—Utilities, e.g. electricity, gas or water
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y20/00—Information sensed or collected by the things
- G16Y20/10—Information sensed or collected by the things relating to the environment, e.g. temperature; relating to location
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y20/00—Information sensed or collected by the things
- G16Y20/20—Information sensed or collected by the things relating to the thing itself
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y20/00—Information sensed or collected by the things
- G16Y20/30—Information sensed or collected by the things relating to resources, e.g. consumed power
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y30/00—IoT infrastructure
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- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y40/00—IoT characterised by the purpose of the information processing
- G16Y40/10—Detection; Monitoring
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- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y40/00—IoT characterised by the purpose of the information processing
- G16Y40/20—Analytics; Diagnosis
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- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y40/00—IoT characterised by the purpose of the information processing
- G16Y40/40—Maintenance of things
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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
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- 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
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
- H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
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Abstract
The invention relates to the technical field of power equipment monitoring, in particular to a method and a system for monitoring cable equipment. The method comprises the steps of acquiring state data of target cable equipment by controlling a preset cable equipment detection device, and correspondingly adjusting communication parameters of optical pulse signals in an optical cable to obtain reflected light signals; the monitoring method comprises the steps of obtaining a reflected light signal through an intelligent grounding box; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the corresponding state judgment mode; if yes, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode; thereby can't carry out the problem of effective monitoring to cable equipment based on intelligent grounding box among the prior art.
Description
Technical Field
The invention relates to the technical field of power equipment monitoring, in particular to a method and a system for monitoring cable equipment.
Background
The effective monitoring of the cable equipment is of great significance to the normal operation of the power system, wherein the cable equipment refers to a cable and corresponding supporting equipment thereof, and specifically comprises a cable sheath, a cable lead, a cable interface, a cable well, a grounding box and the like.
In the prior art, the monitoring of the cable equipment is usually carried out by adopting a corresponding monitoring device according to the specific characteristics of the cable equipment, and the monitoring result is directly sent to monitoring personnel in a traditional wired transmission or wireless transmission mode, so that a scheme for effectively detecting the cable equipment based on an intelligent grounding box is lacked.
To sum up, the problem that cable equipment cannot be effectively monitored based on the intelligent grounding box exists in the prior art.
Disclosure of Invention
The application mainly aims to provide a monitoring method and a monitoring system for cable equipment, so as to solve the problem that the cable equipment cannot be effectively monitored based on an intelligent grounding box in the prior art.
The invention provides a monitoring method of cable equipment, which is applied to a monitoring system of the cable equipment and is characterized in that the monitoring system comprises an intelligent grounding box and a sensing communication base station, and the monitoring method comprises the following steps: the intelligent grounding box controls a preset cable equipment detection device to acquire state data of target cable equipment; the intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station acquires equipment information corresponding to the target cable equipment and determines a corresponding state judgment mode according to the equipment information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judgment mode; and if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode.
Optionally, in a first implementation manner of the first aspect of the present invention, the cable device detection apparatus has a light source generator, a photodetector, and a fluorescence analysis module, and the status data is a joint measurement temperature; the control preset cable equipment detection device collects state data of target cable equipment, and the control preset cable equipment detection device comprises the following steps: generating an excitation light source through the light source generator, and adjusting the excitation light source through a preset collimating lens and a light-gathering cover, so that the excitation light source irradiates a preset fluorescent substance on the position of the target cable equipment according to a preset irradiation angle; receiving, by the photodetector, fluorescence generated after the fluorescent substance is excited by the excitation light source, generating a photoelectric signal, and transmitting the photoelectric signal to a preset fluorescence analysis module through a transmission optical fiber connected to the photodetector; analyzing the photoelectric signal through the fluorescence analysis module to obtain phase information corresponding to fluorescence, and calculating the lag time of the fluorescence relative to the irradiation time of the excitation light source; and acquiring the substance type corresponding to the fluorescent substance, and calculating the joint measurement temperature according to the substance type and the lag time.
Optionally, in a second implementation manner of the first aspect of the present invention, the adjusting the optical pulse signal in the optical cable based on the state data to obtain the reflected light signal includes: extracting time characteristics and data characteristics from the state data, and generating a data waveform based on the time characteristics and the data characteristics; generating a state variable corresponding to each time point in a preset time period based on the data waveform; and adjusting the communication parameters of the optical pulse signals in the optical cable based on the state variables to obtain reflected optical signals.
Optionally, in a third implementation manner of the first aspect of the present invention, the generating the state variable corresponding to each time point in a preset time period based on the data waveform, where the state variable is a vibration signal, includes: extracting the detectable amplitude range of the optical cable from a preset optical cable performance parameter table; the amplitude of the data waveform is adjusted according to the detectable amplitude range, and a vibration signal is generated based on the adjusted data waveform.
Optionally, in a fourth implementation manner of the first aspect of the present invention, the state information includes device state information and environment state information, and the determining, according to the state evaluation manner, whether the target cable device is abnormal based on the state information includes: judging whether the equipment state of the target cable equipment is abnormal or not based on the equipment state information according to the state judging mode; if the equipment state of the target cable equipment is abnormal, the target cable equipment is abnormal; if the equipment state of the target cable equipment is not abnormal, judging whether the environmental state of the target cable equipment is abnormal or not based on the environmental state information according to the state judgment mode; if the environmental state of the target cable equipment is abnormal, the target cable equipment is abnormal; and if the environmental state of the target cable equipment is not abnormal, the target cable equipment is not abnormal.
Optionally, in a fifth implementation manner of the first aspect of the present invention, the determining, according to the state evaluation manner, whether an apparatus state of the target cable apparatus is abnormal based on the apparatus state information includes: extracting a device type and a device location from the device information; if the equipment type is the cable sheath, extracting the voltage and the circulation current of the cable sheath from the equipment state information; determining a corresponding protective layer early warning condition based on the equipment position according to the state evaluation mode; judging whether the sheath voltage and the sheath circulating current meet the sheath early warning condition; if so, judging that the equipment state of the target cable equipment is abnormal; if not, the equipment state of the target cable equipment is not abnormal; if the equipment type is a cable joint, extracting the local discharge amount and the joint measuring temperature from the equipment state information; determining a corresponding joint early warning condition based on the equipment position according to the state evaluation mode; judging whether the partial discharge capacity and the joint measurement temperature meet the joint early warning condition or not; if so, judging that the equipment state of the target cable equipment is abnormal; and if not, the equipment state of the target cable equipment is not abnormal.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the determining, according to the state evaluating manner, whether an environmental state of the target cable device is abnormal based on the environmental state information includes: extracting a device environment type and a device environment position from the device information; if the equipment environment type is a cable well waterless environment, extracting a powder material level and a particle level from the equipment state information; determining a corresponding first environment early warning condition based on the equipment environment position according to the state evaluation mode; judging whether the powder material level and the particle material level meet the first environmental early warning condition; if so, determining that the environmental state of the target cable equipment is abnormal; if not, the environmental state of the target cable equipment is not abnormal; if the equipment environment type is that the cable well has a water environment, extracting the water level from the equipment state information; determining a corresponding second environment early warning condition based on the equipment environment position according to the state evaluation mode; judging whether the powder material level and the particle material level meet the second environmental early warning condition or not; if so, determining that the environmental state of the target cable equipment is abnormal; and if not, the environmental state of the target cable equipment is not abnormal.
The invention provides a monitoring system of cable equipment, which comprises an intelligent grounding box and a sensing communication base station, wherein the intelligent grounding box is connected with the sensing communication base station through an optical cable; the intelligent grounding box is used for controlling a preset cable equipment detection device to acquire state data of target cable equipment; adjusting the optical pulse signal in the optical cable based on the state data to obtain a reflected light signal; the sensing communication base station is used for receiving the reflected light signal, and performing format conversion and demodulation on the reflected light signal to obtain state information; acquiring equipment information corresponding to the target cable equipment, and determining a corresponding state judgment mode according to the equipment information; judging whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; and if so, generating monitoring information based on the state information and the equipment information, and outputting the monitoring information in a preset output mode.
Optionally, in a first implementation manner of the second aspect of the present invention, the monitoring system further includes a cable device detection device, where the cable device detection device and the intelligent grounding box have a communication connection therebetween; the cable equipment detection device is used for receiving the control signal sent by the intelligent grounding box based on the communication connection and acquiring state data of target cable equipment based on the control signal, wherein the state data at least comprises joint measurement temperature.
Optionally, in a second implementation manner of the second aspect of the present invention, the cable device detection apparatus includes a light source generator, a photodetector, and a fluorescence analysis module; the light source generator is used for generating an excitation light source, and the excitation light source is adjusted through a collimating lens and a condensing hood which are preset on the light source generator, so that the excitation light source irradiates a fluorescent substance which is preset on the position of the target cable equipment according to a preset irradiation angle; the photoelectric detector is used for receiving fluorescence generated after the fluorescent substance is excited by the excitation light source, generating a photoelectric signal and transmitting the photoelectric signal to the fluorescence analysis module through a transmission optical fiber connected with the photoelectric detector; the fluorescence analysis module is used for analyzing the photoelectric signal to obtain phase information corresponding to fluorescence and calculating lag time of the fluorescence relative to the irradiation time of the excitation light source; and acquiring the substance type corresponding to the fluorescent substance, and calculating the joint measurement temperature according to the substance type and the lag time.
According to the technical scheme, the intelligent grounding box is used for controlling the preset cable equipment detection device to acquire the state data of the target cable equipment; the intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode; in the above, the data acquisition is carried out on the cable equipment in a fluorescence temperature measurement mode, so that the accuracy of the data acquisition is improved, the cable equipment is favorably and effectively monitored, the communication parameters of the optical pulse signals in the optical cable are adjusted based on the state variables, the data are modulated into the optical signals, the accuracy of transmitting the acquired data is improved through the optical cable transmission, and the cable equipment is favorably and effectively monitored; demodulating signals transmitted in the optical cable through the sensing communication base station, and extracting state information to avoid distortion of the monitored data in the transmission process; based on the state information, the equipment state and the environment state corresponding to the cable equipment are judged respectively, and in the judgment process, the corresponding threshold value is determined based on the equipment information, so that the accuracy of judging abnormity is improved, the accuracy of monitoring is further improved, and the problem that the cable equipment cannot be effectively monitored based on the intelligent grounding box in the prior art is solved.
Drawings
Fig. 1 is a schematic view of a first embodiment of a monitoring method of a cable apparatus in an embodiment of the present invention;
fig. 2 is a schematic view of a second embodiment of a monitoring method of a cable apparatus in the embodiment of the present invention;
fig. 3 is a schematic view of a third embodiment of a monitoring method of a cable apparatus in the embodiment of the present invention;
FIG. 4 is a schematic view of an embodiment of a monitoring system for a cable plant according to an embodiment of the present invention;
fig. 5 is a schematic view of another embodiment of the monitoring system of the cable device in the embodiment of the present invention.
Detailed Description
In order to solve the problem that effective monitoring of cable equipment cannot be carried out based on an intelligent grounding box in the prior art, the application provides a monitoring method and a monitoring system of the cable equipment. The method comprises the steps that a preset cable equipment detection device is controlled to collect state data of target cable equipment through an intelligent grounding box; the intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode; in the above way, the data acquisition is carried out on the cable equipment in a fluorescence temperature measurement mode, so that the accuracy of data acquisition is improved, the cable equipment is favorably and effectively monitored, communication parameters of optical pulse signals in the optical cable are adjusted based on the state variables, the data are modulated into optical signals, the accuracy of transmission of the acquired data is improved through optical cable transmission, and the cable equipment is favorably and effectively monitored; demodulating signals transmitted in the optical cable through the sensing communication base station, and extracting state information to avoid distortion of the monitored data in the transmission process; the device state and the environment state corresponding to the cable device are judged respectively based on the state information, and in the judging process, the corresponding threshold value is determined based on the device information, so that the accuracy of judging abnormity is improved, the monitoring accuracy is further improved, and the problem that the cable device cannot be effectively monitored based on the intelligent grounding box in the prior art is solved.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," or "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For convenience of understanding, a specific flow of an embodiment of the present invention is described below, and referring to fig. 1, a first embodiment of a monitoring method for a cable device in an embodiment of the present invention is implemented by the following steps:
101. controlling a preset cable equipment detection device to acquire state data of target cable equipment;
in this embodiment, the monitoring method is applied to a monitoring system of a cable device, where the monitoring system includes an intelligent grounding box and a sensing communication base station;
in the step, the intelligent grounding box is connected with the sensing communication base station through an optical cable;
in the step, the intelligent grounding box comprises a cable grounding box and an intelligent monitoring module;
in the step, the cable grounding box comprises at least one of a cable sheath direct grounding box, a cable sheath protection grounding box and a cable cross interconnection protection grounding box;
the cable sheath grounding box internally comprises a connecting copper bar, a copper terminal and the like, is used for directly grounding the cable sheath, and does not need to be internally provided with a cable sheath protector. The cable sheath protection grounding box and the cable sheath cross interconnection protection grounding box contain a cable sheath protector, a connecting copper bar, a copper terminal and the like and are used for protecting and grounding the cable sheath; when a long-line high-voltage single-core cable runs, overvoltage is generated due to electromagnetic induction or equipment failure, an outer sheath of the cable is very easy to break down, a single-core cable multipoint ground fault is formed, a cable sheath protector can effectively limit the induced voltage of a cable metal shielding layer (metal sheath) and the equipment failure overvoltage, and the normal running of the cable is better protected; the cable sheath protector is mainly used for a cable sheath protection grounding box and a cable sheath cross interconnection grounding box;
in this step, the cable device detection apparatus includes at least one of an optical fiber fluorescence temperature measurement apparatus, a cable well lid monitoring apparatus (e.g., a switching value sensor), a ground box state monitoring apparatus (e.g., an NFC card sender, an NFC key, and an MEMS vibration sensor), a cable well environment detection apparatus (e.g., a compact high-frequency contactless sensor and a radar level sensor), a joint discharge monitoring apparatus (e.g., a partial discharge instrument, a mutual inductor, and a mutual inductor test field), an induced voltage monitoring apparatus, and a sheath circulation monitoring apparatus.
In the step, the intelligent monitoring module is used for controlling a preset cable equipment detection device to acquire state data of target cable equipment; and adjusting the optical pulse signal in the optical cable based on the state data to obtain a reflected optical signal.
In the step, the state data comprises at least one of temperature state data, vibration state data, deformation state data, electric field state data and magnetic field state data, wherein the temperature state data comprises joint measurement temperature;
further, when the cable equipment detection device is an optical fiber fluorescence temperature measurement device, the optical fiber fluorescence temperature measurement device is provided with a light source generator, a photoelectric detector and a fluorescence analysis module;
the process of controlling the preset cable equipment detection device to acquire the state data of the target cable equipment comprises the following steps:
controlling the light source generator to generate an excitation light source, and adjusting the excitation light source through a preset collimating lens and a light-gathering cover so that the excitation light source irradiates a preset fluorescent substance on the position of the target cable equipment according to a preset irradiation angle; receiving, by the photodetector, fluorescence generated after the fluorescent substance is excited by the excitation light source, generating a photoelectric signal, and transmitting the photoelectric signal to a preset fluorescence analysis module through a transmission optical fiber connected to the photodetector; analyzing the photoelectric signal through the fluorescence analysis module to obtain phase information corresponding to fluorescence, and calculating the lag time of the fluorescence relative to the irradiation time of the excitation light source; and acquiring the substance type corresponding to the fluorescent substance, and calculating the joint measurement temperature according to the substance type and the lag time.
102. The intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals;
for this step, it can be specifically realized by the following means:
extracting time characteristics and data characteristics from the state data, and generating a data waveform based on the time characteristics and the data characteristics;
generating a state variable corresponding to each time point in a preset time period based on the data waveform;
and adjusting the communication parameters of the optical pulse signals in the optical cable based on the state variables to obtain reflected optical signals.
Specifically, the state data includes at least one of vibration state data, deformation state data, electric field state data, and magnetic field state data;
the process of extracting time features and data features from the state data and generating a data waveform based on the time features and the data features includes:
when the state data is vibration state data, extracting vibration time and vibration frequency and vibration amplitude corresponding to each time point in the vibration time from the vibration state data;
generating a data waveform based on the vibration time and the vibration frequency and the vibration amplitude corresponding to each time point in the vibration time, for example, generating data points in a plane rectangular coordinate system with the vibration time as an abscissa and the vibration frequency and the vibration amplitude as an ordinate, and generating the data waveform based on the data points;
when the state data is deformation state data, extracting deformation time and deformation amplitude corresponding to each time point in the deformation time from the deformation state data;
generating a data waveform based on the deformation time and the deformation amplitude corresponding to each time point in the deformation time, for example, generating data points in a plane rectangular coordinate system with the deformation time as a horizontal coordinate and the deformation amplitude as a vertical coordinate, and generating the data waveform based on the data points.
Specifically, the state variable comprises at least one of temperature, vibration, stress, deformation, an electric field and a magnetic field;
when the state variable is a vibration signal, the generating of the state variable corresponding to each time point in a preset time period based on the data waveform includes:
extracting the detectable amplitude range of the optical cable from a preset optical cable performance parameter table;
the amplitude of the data waveform is adjusted according to the detectable amplitude range, and a vibration signal is generated based on the adjusted data waveform.
Extracting a detectable amplitude range of the optical cable from a preset optical cable performance parameter table;
adjusting the amplitude of the data waveform in accordance with the detectable amplitude range, e.g., based on extracting an amplitude range corresponding to the data waveform from the data waveform and calculating a waveform mapping ratio in accordance with the detectable amplitude range and the amplitude range corresponding to the data waveform, adjusting the data waveform based on the waveform mapping ratio such that the amplitude of the data waveform is within the detectable amplitude range;
a vibration signal is generated based on the adjusted data waveform.
In practical applications, the state variable comprises an acoustic signal;
in practical application, the step of generating the state variable corresponding to each time point in the preset time period based on the data waveform can be further implemented by the following steps:
extracting the detectable sound wave frequency amplitude range of the optical cable from a preset optical cable performance parameter table;
adjusting the acoustic frequency amplitude of the data waveform according to the detectable acoustic frequency amplitude range, for example, based on extracting an acoustic frequency amplitude range corresponding to the data waveform from the data waveform, calculating a waveform mapping scale according to the detectable acoustic frequency amplitude range and the acoustic frequency amplitude range corresponding to the data waveform, and adjusting the data waveform based on the waveform mapping scale so that the acoustic frequency amplitude of the data waveform is within the detectable acoustic frequency amplitude range;
an acoustic wave signal is generated based on the adjusted data waveform.
In practical applications, the state variable comprises an electric field signal;
in practical application, the step of generating the state variable corresponding to each time point in the preset time period based on the data waveform can be further implemented by the following steps:
extracting the range of the detectable electric field intensity amplitude of the optical cable from a preset optical cable performance parameter table;
adjusting the electric field intensity amplitude of the data waveform according to the detectable electric field intensity amplitude range, for example, based on extracting the electric field intensity amplitude range corresponding to the data waveform from the data waveform, calculating a waveform mapping ratio according to the detectable electric field intensity amplitude range and the electric field intensity amplitude range corresponding to the data waveform, and adjusting the data waveform based on the waveform mapping ratio so that the electric field intensity amplitude of the data waveform is within the detectable electric field intensity amplitude range;
an electric field signal is generated based on the adjusted data waveform.
In practical applications, the state variable comprises a magnetic field signal;
in practical application, the step of generating the state variable corresponding to each time point in the preset time period based on the data waveform can be further implemented by the following steps:
extracting the range of detectable magnetic field intensity of the optical cable from a preset optical cable performance parameter table;
adjusting the magnitude of the magnetic field strength of the data waveform according to the detectable magnitude of the magnetic field strength range, for example, based on extracting a magnitude range of the magnetic field strength corresponding to the data waveform from the data waveform, calculating a waveform mapping ratio according to the magnitude range of the detectable magnetic field strength and the magnitude range of the magnetic field strength corresponding to the data waveform, and adjusting the data waveform based on the waveform mapping ratio so that the magnitude of the magnetic field strength of the data waveform is within the detectable magnitude range of the magnetic field strength;
a magnetic field signal is generated based on the adjusted data waveform.
Specifically, the communication parameter includes at least one of wavelength, phase, frequency, phase, polarization state, and energy;
the adjusting the communication parameter of the optical pulse signal in the optical cable based on the state variable to obtain a reflected light signal includes:
if the state variable is a vibration signal, generating a vibration modulation signal based on the vibration signal;
disturbing the optical cable based on the vibration modulation signal so as to adjust the communication parameters of the optical pulse signal in the optical cable and obtain a reflected light signal;
if the state variable is a sound wave signal, generating a sound wave modulation signal based on the sound wave signal;
disturbing the optical cable based on the sound wave modulation signal so as to adjust the communication parameters of the optical pulse signal in the optical cable and obtain a reflected light signal;
if the state variable is an electric field signal, generating an electric field modulation signal based on the electric field signal;
disturbing the optical cable based on the electric field modulation signal so as to adjust the communication parameters of the optical pulse signal in the optical cable and obtain a reflected light signal;
if the state variable is a magnetic field signal, generating a magnetic field modulation signal based on the magnetic field signal;
and disturbing the optical cable based on the magnetic field modulation signal, so as to adjust the communication parameters of the optical pulse signal in the optical cable and obtain a reflected light signal.
103. The sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information;
for this step, it can be specifically realized by the following manner:
extracting characteristic parameters from the reflected light signals, wherein the characteristic parameters comprise at least one of wavelength characteristic parameters, phase characteristic parameters, frequency characteristic parameters, polarization state characteristic parameters and light intensity characteristic parameters;
and demodulating the characteristic parameters to obtain state information, wherein the state information comprises equipment state information and environment state information.
In practical applications, the process of performing format conversion and demodulation on the reflected light signal to obtain the state information includes: a modulator preset in the sensing communication base station performs format conversion and demodulation on the reflected light signal;
specifically, the process of format conversion and demodulation of the reflected light signal by a modulator preset in the sensing communication base station includes:
the modulator converts the reflected optical signal into a target electrical signal;
determining a modulation phase sequence of the modulator corresponding to a preset wavelength according to the target electric signal;
and demodulating the target electric signal according to the modulation phase sequence to obtain state information.
Further, the modulator may be adjusted by an optical component disposed on the modulator;
specifically, the temperature of the resistive film to which the refractive index tunable optical assembly is coupled is adjusted, thereby adjusting the refractive index of the refractive index tunable optical assembly such that the demodulation wavelength of the demodulator matches the wavelength of the reflected optical signal.
104. The sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information;
for this step, it can be specifically realized by the following means:
and inquiring a corresponding state judging mode in a preset state judging mode table based on the equipment information.
105. The sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judgment mode;
in this step, the state information includes device state information and environment state information, wherein the device state information at least includes a device running state, and the environment state information at least includes an external force intrusion state and a no external force intrusion state;
for this step, it can be specifically realized by the following means:
according to the state judgment mode, judging whether the equipment state of the target cable equipment is abnormal or not based on the equipment state information, for example, if the equipment running state is normal, the equipment state of the target cable equipment is normal, and if the equipment running state is normal, the equipment state of the target cable equipment is abnormal;
if the equipment state of the target cable equipment is abnormal, the target cable equipment is abnormal;
if the device state of the target cable device is not abnormal, judging whether the environmental state of the target cable device is abnormal or not based on the environmental state information according to the state judgment mode, for example, if the environmental state information is an external force invasion state, the environmental state of the target cable device is abnormal, and if the environmental state information is a non-external force invasion state, the environmental state of the target cable device is normal;
if the environmental state of the target cable equipment is abnormal, the target cable equipment is abnormal;
and if the environmental state of the target cable equipment is not abnormal, the target cable equipment is not abnormal.
106. And if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode.
In the step, the sensing communication base station is connected with a preset monitoring information platform through an optical cable;
in this step, the process of outputting the monitoring information in a preset output mode includes:
uploading the monitoring information to a monitoring information platform through an optical cable;
and displaying the monitoring information through a preset display interface in the monitoring information platform.
By implementing the method, the intelligent grounding box controls a preset cable equipment detection device to acquire the state data of the target cable equipment; the intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; if yes, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode; in the above way, the data acquisition is carried out on the cable equipment in a fluorescence temperature measurement mode, so that the accuracy of data acquisition is improved, the cable equipment is favorably and effectively monitored, communication parameters of optical pulse signals in the optical cable are adjusted based on the state variables, the data are modulated into optical signals, the accuracy of transmission of the acquired data is improved through optical cable transmission, and the cable equipment is favorably and effectively monitored; demodulating signals transmitted in the optical cable through the sensing communication base station, and extracting state information to avoid distortion of the monitored data in the transmission process; the device state and the environment state corresponding to the cable device are judged respectively based on the state information, and in the judging process, the corresponding threshold value is determined based on the device information, so that the accuracy of judging abnormity is improved, the monitoring accuracy is further improved, and the problem that the cable device cannot be effectively monitored based on the intelligent grounding box in the prior art is solved.
Referring to fig. 2, a second embodiment of the method for monitoring a cable device according to the embodiment of the present invention includes the following steps:
201. the intelligent grounding box controls a preset cable equipment detection device to acquire state data of target cable equipment;
in this embodiment, the monitoring method of the cable equipment is applied to a monitoring system of the cable equipment, wherein the monitoring system includes an intelligent grounding box and a sensing communication base station.
For this step, it can be specifically realized by the following means:
the intelligent grounding box generates a control signal aiming at the cable equipment detection device and sends the control signal to the cable equipment detection device;
and the cable equipment detection device responds to the control signal and acquires the state data of the target cable equipment according to the control signal.
202. The intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals;
in this step, the state data includes at least one of vibration state data, deformation state data, electric field state data, and magnetic field state data.
For this step, it can be specifically realized by the following manner:
generating a modulation signal based on the status data;
and disturbing the optical cable based on the modulation signal, so as to adjust the communication parameters of the optical pulse signal in the optical cable and obtain the reflected light signal.
203. The sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information;
for this step, it can be specifically realized by the following means:
extracting characteristic parameters from the reflected light signals, wherein the characteristic parameters comprise at least one of wavelength characteristic parameters, phase characteristic parameters, frequency characteristic parameters, polarization state characteristic parameters and light intensity characteristic parameters;
and demodulating the characteristic parameters to obtain state information, wherein the state information comprises equipment state information and environment state information.
In practical applications, the process of performing format conversion and demodulation on the reflected light signal to obtain the state information includes: a modulator preset in the sensing communication base station performs format conversion and demodulation on the reflected light signal;
specifically, the process of format conversion and demodulation of the reflected light signal by a modulator preset in the sensing communication base station includes:
the modulator converts the reflected optical signal into a target electrical signal;
determining a modulation phase sequence of the modulator corresponding to a preset wavelength according to the target electric signal;
and demodulating the target electric signal according to the modulation phase sequence to obtain state information.
Further, the modulator may be adjusted by an optical component disposed on the modulator;
specifically, the temperature of the resistive film to which the refractive index tunable optical assembly is coupled is adjusted, thereby adjusting the refractive index of the refractive index tunable optical assembly such that the demodulation wavelength of the demodulator matches the wavelength of the reflected optical signal.
204. The sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information;
for this step, it can be specifically realized by the following means:
and inquiring a corresponding state judging mode in a preset state judging mode table based on the equipment information.
205. The sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judgment mode;
in this step, the state information includes device state information and environment state information, where the device state information at least includes a device running state, and the environment state information at least includes an external force intrusion state and an external force non-intrusion state;
for this step, it can be specifically realized by the following manner:
according to the state judgment mode, judging whether the equipment state of the target cable equipment is abnormal or not based on the equipment state information, for example, if the equipment running state is normal, the equipment state of the target cable equipment is normal, and if the equipment running state is normal, the equipment state of the target cable equipment is abnormal;
if the equipment state of the target cable equipment is abnormal, the target cable equipment is abnormal;
if the device state of the target cable device is not abnormal, judging whether the environmental state of the target cable device is abnormal or not based on the environmental state information according to the state judgment mode, for example, if the environmental state information is an external force invasion state, the environmental state of the target cable device is abnormal, and if the environmental state information is a non-external force invasion state, the environmental state of the target cable device is normal;
if the environmental state of the target cable equipment is abnormal, the target cable equipment is abnormal;
and if the environmental state of the target cable equipment is not abnormal, the target cable equipment is not abnormal.
206. And if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode.
In the step, the sensing communication base station is connected with a preset monitoring information platform through an optical cable;
in this step, the process of outputting the monitoring information in a preset output mode includes:
uploading the monitoring information to a monitoring information platform through an optical cable;
and displaying the monitoring information through a display interface preset in the monitoring information platform.
By implementing the method, the intelligent grounding box controls a preset cable equipment detection device to acquire the state data of the target cable equipment; the intelligent grounding box adjusts the optical pulse signal in the optical cable based on the state data to obtain a reflected light signal; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; if yes, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode; in the above, the data acquisition is carried out on the cable equipment in a fluorescence temperature measurement mode, so that the accuracy of the data acquisition is improved, the cable equipment is favorably and effectively monitored, the communication parameters of the optical pulse signals in the optical cable are adjusted based on the state variables, the data are modulated into the optical signals, the accuracy of transmitting the acquired data is improved through the optical cable transmission, and the cable equipment is favorably and effectively monitored; demodulating signals transmitted in the optical cable through the sensing communication base station, and extracting state information to avoid distortion of the monitored data in the transmission process; the device state and the environment state corresponding to the cable device are judged respectively based on the state information, and in the judging process, the corresponding threshold value is determined based on the device information, so that the accuracy of judging abnormity is improved, the monitoring accuracy is further improved, and the problem that the cable device cannot be effectively monitored based on the intelligent grounding box in the prior art is solved.
Referring to fig. 3, a third embodiment of the monitoring method for cable equipment according to the embodiment of the present invention includes the following steps:
301. the intelligent grounding box controls a preset cable equipment detection device to acquire state data of target cable equipment;
in this embodiment, the monitoring method of the cable equipment is applied to a monitoring system of the cable equipment, wherein the monitoring system of the cable equipment comprises an intelligent grounding box and a sensing communication base station.
302. The intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals;
303. the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information;
304. the sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information;
305. the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judging mode;
in this step, the state information includes device state information and environment state information;
for this step, it can be specifically realized by the following means:
judging whether the equipment state of the target cable equipment is abnormal or not based on the equipment state information according to the state judging mode; if the equipment state of the target cable equipment is abnormal, the target cable equipment is abnormal; if the equipment state of the target cable equipment is not abnormal, judging whether the environmental state of the target cable equipment is abnormal or not based on the environmental state information according to the state judgment mode; if the environmental state of the target cable equipment is abnormal, the target cable equipment is abnormal; and if the environmental state of the target cable equipment is not abnormal, the target cable equipment is not abnormal.
Further, the determining, according to the state evaluation mode, whether the device state of the target cable device is abnormal based on the device state information includes:
extracting a device type and a device location from the device information;
if the equipment type is the cable sheath, extracting the voltage and the circulation current of the cable sheath from the equipment state information; the voltage of the cable sheath is detected by an induction voltage sensor preset on the cable sheath, and the induction voltage sensor can realize induction voltage monitoring within the range of 0-400V; the cable sheath circulating current is detected by a circulating current sensor preset on the cable sheath, and the circulating current sensor can realize circulating current monitoring within the range of 0-1000A;
determining a corresponding protective layer early warning condition based on the equipment position according to the state evaluation mode;
judging whether the voltage of the cable sheath and the circulating current of the cable sheath meet the sheath early warning condition or not;
if so, judging that the equipment state of the target cable equipment is abnormal;
if not, the equipment state of the target cable equipment is not abnormal;
if the equipment type is a cable joint, extracting the partial discharge amount and the joint measurement temperature from the equipment state information; the local discharge amount is detected by a local discharge amount sensor preset on the cable sheath, the joint measurement temperature is detected by a fluorescence temperature measurement sensor preset on the cable sheath, and the fluorescence temperature measurement sensor can realize temperature monitoring within the range of 45 ℃ below zero to 200 ℃ above zero;
determining a corresponding joint early warning condition based on the equipment position according to the state evaluation mode;
judging whether the partial discharge amount and the joint measurement temperature meet the joint early warning condition;
if yes, the equipment state of the target cable equipment is abnormal;
if not, the equipment state of the target cable equipment is not abnormal.
In practical application, the detection process of the partial discharge amount is carried out through a partial discharge test, and the partial discharge amount is detected firstly
The background interference of a test site is not too large, and the partial discharge of the background of the test site of a common transformer cannot exceed 2-3PC. Then, calibrating the partial discharge instrument by using a square wave generator; ensuring that the mutual inductor is effectively grounded before the partial discharge test; when testing the instrument transformer, the partial discharge test should be carried out after the withstand voltage, and the test voltage should be rapidly increased from a lower value to the pre-applied voltage (0.8) × 1.3 × um for at least 10 seconds. Then rapidly dropping the voltage to the point of measurement voltage (1.1 × um/√ 3); measurements were taken after a minimum of 1 minute hold.
Further, the determining, according to the state evaluation mode, whether the environmental state of the target cable device is abnormal based on the environmental state information includes:
extracting a device environment type and a device environment position from the device information;
if the equipment environment type is a cable well waterless environment, extracting a powder material level and a particle level from the equipment state information;
determining a corresponding first environment early warning condition based on the equipment environment position according to the state evaluation mode;
judging whether the powder material level and the particle material level meet the first environmental early warning condition;
if so, judging that the environmental state of the target cable equipment is abnormal;
and if not, the environmental state of the target cable equipment is not abnormal.
If the equipment environment type is that the cable well has a water environment, extracting the water level from the equipment state information;
determining a corresponding second environment early warning condition based on the equipment environment position according to the state evaluation mode;
judging whether the powder material level and the particle material level meet the second environmental early warning condition or not;
if so, determining that the environmental state of the target cable equipment is abnormal;
and if not, the environmental state of the target cable equipment is not abnormal.
In practical application, the testing process of water level can be realized through radar level sensor, and radar level sensor during operation, high frequency pulse ripples are sent by the probe, and the surface of water of meeting the testee is reflected, and the reflection echo of turning back is received by same probe, converts the signal of telecommunication into. The time between pulse transmission and reception is proportional to the distance of the probe from the object surface, and the relationship between the distance of transmission s and the velocity v and the time of transmission t can be expressed by the formula: H-H = v t/2.
In practical application, the state information further comprises a cable well cover state and an intelligent grounding box state;
in practical applications, the process of determining whether the target cable device is abnormal based on the state information may be implemented as follows:
judging whether the cable well lid is abnormal or not based on the state of the cable well lid, for example, acquiring an authorization state corresponding to the cable well lid from a preset detection information platform, and judging whether the state of the cable well lid is the same as the authorization state corresponding to the cable well lid or not, wherein if the state of the cable well lid is the same as the authorization state corresponding to the cable well lid, the abnormality of the cable well lid does not exist, and if the state of the cable well lid is different from the authorization state, the abnormality of the cable well lid exists;
judging whether the intelligent grounding box is abnormal or not based on the state of the intelligent grounding box, for example, acquiring an authorization state corresponding to the intelligent grounding box from a preset detection information platform, judging whether the state of the intelligent grounding box is the same as the authorization state corresponding to the intelligent grounding box or not, if so, judging that the intelligent grounding box is not abnormal, and if not, judging that the intelligent grounding box is abnormal;
and if the cable well cover and/or the intelligent grounding box are abnormal, the target cable equipment is abnormal.
306. And if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode.
In the step, the sensing communication base station is in communication connection with a preset monitoring information display terminal based on an MQTT (message queue telemetry transport) protocol;
and the sensing communication base station encapsulates the state information and the equipment information into a theme message, and distributes the theme message to a preset monitoring information display terminal based on an MQTT protocol.
For this step, it can be specifically realized by the following manner:
in practical application, the monitoring information also adopts an early warning scheme;
in practical application, this step can be realized by the following steps:
extracting the equipment type, the equipment environment type, the equipment position and the equipment environment position corresponding to the target cable equipment from the equipment information;
determining a corresponding patrol personnel identifier on a preset monitoring information platform according to the equipment position and the equipment environment position, and determining a corresponding maintenance equipment identifier on the monitoring information platform according to the equipment type and the equipment environment type;
generating an early warning scheme according to the patrol personnel identifier and the maintenance equipment identifier;
and outputting the early warning scheme in a preset output mode, for example, determining a corresponding communication identifier based on the identifier of the patrol personnel, and sending the early warning scheme to communication equipment corresponding to the patrol personnel based on the pass identifier, wherein the communication identifiers correspond to the communication equipment in a one-to-one manner.
By implementing the method, the intelligent grounding box controls a preset cable equipment detection device to acquire the state data of the target cable equipment; the intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode; in the above way, the data acquisition is carried out on the cable equipment in a fluorescence temperature measurement mode, so that the accuracy of data acquisition is improved, the cable equipment is favorably and effectively monitored, communication parameters of optical pulse signals in the optical cable are adjusted based on the state variables, the data are modulated into optical signals, the accuracy of transmission of the acquired data is improved through optical cable transmission, and the cable equipment is favorably and effectively monitored; demodulating signals transmitted in the optical cable through the sensing communication base station, and extracting state information to avoid distortion of the monitored data in the transmission process; the method comprises the steps of judging the equipment state and the environment state corresponding to the cable equipment respectively based on state information, determining corresponding threshold values based on the equipment information in the judging process, combining parameters such as local discharge capacity, joint measurement temperature, powder material level and particle material level, improving the accuracy of abnormity judgment, and further improving the accuracy of monitoring, so that the problem that the cable equipment cannot be effectively monitored based on an intelligent grounding box in the prior art is solved.
With reference to fig. 4, an embodiment of a monitoring system for cable equipment in an embodiment of the present invention includes:
the intelligent grounding box 401 is used for controlling a preset cable equipment detection device to acquire state data of target cable equipment; adjusting the optical pulse signal in the optical cable based on the state data to obtain a reflected optical signal;
the sensing communication base station 402 is configured to receive the reflected light signal, and perform format conversion and demodulation on the reflected light signal to obtain state information; acquiring equipment information corresponding to the target cable equipment, and determining a corresponding state judgment mode according to the equipment information; judging whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; and if so, generating monitoring information based on the state information and the equipment information, and outputting the monitoring information in a preset output mode.
Through the implementation of the system, the intelligent grounding box controls a preset cable equipment detection device to acquire the state data of the target cable equipment; the intelligent grounding box adjusts the optical pulse signal in the optical cable based on the state data to obtain a reflected light signal; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode; in the above, the data acquisition is carried out on the cable equipment in a fluorescence temperature measurement mode, so that the accuracy of the data acquisition is improved, the cable equipment is favorably and effectively monitored, the communication parameters of the optical pulse signals in the optical cable are adjusted based on the state variables, the data are modulated into the optical signals, the accuracy of transmitting the acquired data is improved through the optical cable transmission, and the cable equipment is favorably and effectively monitored; demodulating signals transmitted in the optical cable through the sensing communication base station, and extracting state information to avoid distortion of monitored data in a transmission process; the device state and the environment state corresponding to the cable device are judged respectively based on the state information, and in the judging process, the corresponding threshold value is determined based on the device information, so that the accuracy of judging abnormity is improved, the monitoring accuracy is further improved, and the problem that the cable device cannot be effectively monitored based on the intelligent grounding box in the prior art is solved.
Referring to fig. 5, another embodiment of the monitoring system of the cable device according to the embodiment of the present invention includes:
the intelligent grounding box 401 is used for controlling a preset cable equipment detection device to acquire state data of target cable equipment; adjusting the optical pulse signal in the optical cable based on the state data to obtain a reflected light signal;
the sensing communication base station 402 is configured to receive the reflected light signal, and perform format conversion and demodulation on the reflected light signal to obtain state information; acquiring equipment information corresponding to the target cable equipment, and determining a corresponding state judgment mode according to the equipment information; judging whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; if so, generating monitoring information based on the state information and the equipment information, and outputting the monitoring information in a preset output mode;
the sensing communication base station 402 is further configured to determine whether the device state of the target cable device is abnormal based on the device state information according to the state determination manner; if the equipment state of the target cable equipment is abnormal, the target cable equipment is abnormal; if the equipment state of the target cable equipment is not abnormal, judging whether the environmental state of the target cable equipment is abnormal or not based on the environmental state information according to the state judgment mode; if the environmental state of the target cable equipment is abnormal, the target cable equipment is abnormal; if the environmental state of the target cable equipment is not abnormal, the target cable equipment is not abnormal;
the sensing communication base station 402 is further configured to extract a device type and a device location from the device information; if the equipment type is the cable sheath, extracting the voltage and the circulating current of the cable sheath from the equipment state information; determining a corresponding protective layer early warning condition based on the equipment position according to the state evaluation mode; judging whether the sheath voltage and the sheath circulating current meet the sheath early warning condition; if so, judging that the equipment state of the target cable equipment is abnormal; if not, the equipment state of the target cable equipment is not abnormal; if the equipment type is a cable joint, extracting the partial discharge amount and the joint measurement temperature from the equipment state information; determining a corresponding joint early warning condition based on the equipment position according to the state evaluation mode; judging whether the partial discharge amount and the joint measurement temperature meet the joint early warning condition; if so, judging that the equipment state of the target cable equipment is abnormal; if not, the equipment state of the target cable equipment is not abnormal;
the sensing communication base station 402 is further configured to extract a device environment type and a device environment location from the device information; if the equipment environment type is a cable well anhydrous environment, extracting a powder material level and a particle material level from the equipment state information; determining a corresponding first environment early warning condition based on the equipment environment position according to the state evaluation mode; judging whether the powder material level and the particle level meet the first environmental early warning condition or not; if so, determining that the environmental state of the target cable equipment is abnormal; if not, the environmental state of the target cable equipment is not abnormal; if the equipment environment type is that the cable well has a water environment, extracting the water level from the equipment state information; determining a corresponding second environment early warning condition based on the equipment environment position according to the state evaluation mode; judging whether the powder material level and the particle material level meet the second environmental early warning condition or not; if so, determining that the environmental state of the target cable equipment is abnormal; and if not, the environmental state of the target cable equipment is not abnormal.
And the cable equipment detection device 403 is configured to receive the control signal sent by the intelligent grounding box based on the communication connection, and acquire state data of the target cable equipment based on the control signal, where the state data at least includes a joint measurement temperature.
In this embodiment, the cable device detection apparatus 403 includes:
a light source generator 4031, configured to generate an excitation light source, and adjust the excitation light source through a collimating lens and a condensing hood preset on the light source generator, so that the excitation light source irradiates a fluorescent substance preset at the target cable device position according to a preset irradiation angle;
a photodetector 4032, configured to receive fluorescence generated by the fluorescent substance after being excited by the excitation light source, generate a photoelectric signal, and transmit the photoelectric signal to the fluorescence analysis module through a transmission optical fiber connected to the photodetector;
the fluorescence analysis module 4033 is used for analyzing the photoelectric signal to obtain phase information corresponding to fluorescence and calculating lag time of the fluorescence relative to the irradiation time of the excitation light source; and acquiring the substance type corresponding to the fluorescent substance, and calculating the joint measurement temperature according to the substance type and the lag time.
Through the implementation of the system, the intelligent grounding box controls a preset cable equipment detection device to acquire the state data of the target cable equipment; the intelligent grounding box adjusts the optical pulse signal in the optical cable based on the state data to obtain a reflected light signal; the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information; the sensing communication base station acquires equipment information corresponding to target cable equipment and determines a corresponding state judgment mode according to the equipment information; the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; if yes, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode; in the above, the data acquisition is carried out on the cable equipment in a fluorescence temperature measurement mode, so that the accuracy of the data acquisition is improved, the cable equipment is favorably and effectively monitored, the communication parameters of the optical pulse signals in the optical cable are adjusted based on the state variables, the data are modulated into the optical signals, the accuracy of transmitting the acquired data is improved through the optical cable transmission, and the cable equipment is favorably and effectively monitored; demodulating signals transmitted in the optical cable through the sensing communication base station, and extracting state information to avoid distortion of the monitored data in the transmission process; based on the state information, the equipment state and the environment state corresponding to the cable equipment are judged respectively, and in the judgment process, the corresponding threshold value is determined based on the equipment information, so that the accuracy of judging abnormity is improved, the accuracy of monitoring is further improved, and the problem that the cable equipment cannot be effectively monitored based on the intelligent grounding box in the prior art is solved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it 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. A monitoring method of cable equipment is applied to a monitoring system of the cable equipment, and is characterized in that the monitoring system comprises an intelligent grounding box and a sensing communication base station, and the monitoring method comprises the following steps:
the intelligent grounding box controls a preset cable equipment detection device to acquire state data of target cable equipment;
the intelligent grounding box adjusts the optical pulse signals in the optical cable based on the state data to obtain reflected optical signals;
the sensing communication base station receives the reflected light signal, and performs format conversion and demodulation on the reflected light signal to obtain state information;
the sensing communication base station acquires equipment information corresponding to the target cable equipment and determines a corresponding state judgment mode according to the equipment information;
the sensing communication base station judges whether the target cable equipment is abnormal or not based on the state information according to the state judgment mode;
and if so, the sensing communication base station generates monitoring information based on the state information and the equipment information, and outputs the monitoring information in a preset output mode.
2. The method of claim 1, wherein the cable plant detection device has a light source generator, a photodetector and a fluorescence analysis module, and the status data is a temperature measured by the connector;
the control preset cable equipment detection device collects state data of target cable equipment, and the control preset cable equipment detection device comprises the following steps:
generating an excitation light source through the light source generator, and adjusting the excitation light source through a preset collimating lens and a light-gathering cover, so that the excitation light source irradiates a preset fluorescent substance on the position of the target cable equipment according to a preset irradiation angle;
receiving, by the photodetector, fluorescence generated by the fluorescent substance after being excited by the excitation light source, generating a photoelectric signal, and transmitting the photoelectric signal to a preset fluorescence analysis module through a transmission optical fiber connected to the photodetector;
analyzing the photoelectric signal through the fluorescence analysis module to obtain phase information corresponding to fluorescence, and calculating the lag time of the fluorescence relative to the irradiation time of the excitation light source;
and acquiring the substance type corresponding to the fluorescent substance, and calculating the joint measurement temperature according to the substance type and the lag time.
3. The method of claim 1, wherein adjusting the optical pulse signal in the optical fiber cable based on the status data to obtain a reflected optical signal comprises:
extracting time characteristics and data characteristics from the state data, and generating a data waveform based on the time characteristics and the data characteristics;
generating a state variable corresponding to each time point in a preset time period based on the data waveform;
and adjusting the communication parameters of the optical pulse signals in the optical cable based on the state variables to obtain reflected optical signals.
4. The method according to claim 3, wherein the state variable is a vibration signal, and the generating the state variable corresponding to each time point in the preset time period based on the data waveform comprises:
extracting the detectable amplitude range of the optical cable from a preset optical cable performance parameter table;
the amplitude of the data waveform is adjusted according to the detectable amplitude range, and a vibration signal is generated based on the adjusted data waveform.
5. The monitoring method according to any one of claims 1 to 4, wherein the status information includes device status information and environmental status information, and the determining whether the target cable device is abnormal based on the status information according to the status evaluation manner includes:
judging whether the equipment state of the target cable equipment is abnormal or not based on the equipment state information according to the state judging mode;
if the equipment state of the target cable equipment is abnormal, the target cable equipment is abnormal;
if the equipment state of the target cable equipment is not abnormal, judging whether the environmental state of the target cable equipment is abnormal or not based on the environmental state information according to the state judgment mode;
if the environmental state of the target cable equipment is abnormal, the target cable equipment is abnormal;
and if the environmental state of the target cable equipment is not abnormal, the target cable equipment is not abnormal.
6. The monitoring method according to claim 5, wherein the determining whether the device status of the target cable device is abnormal based on the device status information according to the status evaluation manner includes:
extracting a device type and a device location from the device information;
if the equipment type is the cable sheath, extracting the voltage and the circulation current of the cable sheath from the equipment state information;
determining a corresponding protective layer early warning condition based on the equipment position according to the state evaluation mode;
judging whether the sheath voltage and the sheath circulating current meet the sheath early warning condition;
if so, judging that the equipment state of the target cable equipment is abnormal;
if not, the equipment state of the target cable equipment is not abnormal;
if the equipment type is a cable joint, extracting the partial discharge amount and the joint measurement temperature from the equipment state information;
determining a corresponding joint early warning condition based on the equipment position according to the state evaluation mode;
judging whether the partial discharge capacity and the joint measurement temperature meet the joint early warning condition or not;
if yes, the equipment state of the target cable equipment is abnormal;
and if not, the equipment state of the target cable equipment is not abnormal.
7. The monitoring method according to claim 5, wherein the determining whether the environmental state of the target cable device is abnormal based on the environmental state information according to the state judgment manner comprises:
extracting a device environment type and a device environment position from the device information;
if the equipment environment type is a cable well anhydrous environment, extracting a powder material level and a particle material level from the equipment state information;
determining a corresponding first environment early warning condition based on the equipment environment position according to the state evaluation mode;
judging whether the powder material level and the particle level meet the first environmental early warning condition or not;
if so, determining that the environmental state of the target cable equipment is abnormal;
if not, the environmental state of the target cable equipment is not abnormal;
if the equipment environment type is that the cable well has a water environment, extracting the water level from the equipment state information;
determining a corresponding second environment early warning condition based on the equipment environment position according to the state evaluation mode;
judging whether the powder material level and the particle material level meet the second environmental early warning condition or not;
if so, determining that the environmental state of the target cable equipment is abnormal;
and if not, the environmental state of the target cable equipment is not abnormal.
8. The monitoring system of the cable equipment is characterized by comprising an intelligent grounding box and a sensing communication base station, wherein the intelligent grounding box is connected with the sensing communication base station through an optical cable;
the intelligent grounding box is used for controlling a preset cable equipment detection device to acquire state data of target cable equipment; adjusting the optical pulse signal in the optical cable based on the state data to obtain a reflected optical signal;
the sensing communication base station is used for receiving the reflected light signals, and performing format conversion and demodulation on the reflected light signals to obtain state information; acquiring equipment information corresponding to the target cable equipment, and determining a corresponding state judgment mode according to the equipment information; judging whether the target cable equipment is abnormal or not based on the state information according to the state judging mode; and if so, generating monitoring information based on the state information and the equipment information, and outputting the monitoring information in a preset output mode.
9. The monitoring system of claim 8, further comprising a cable equipment detection device, wherein the cable equipment detection device is communicatively coupled to the intelligent grounded tank;
the cable equipment detection device is used for acquiring state data of target cable equipment, wherein the state data at least comprises joint measurement temperature.
10. The monitoring system of claim 9, wherein the cable device detection apparatus comprises a light source generator, a photodetector, and a fluorescence analysis module;
the light source generator is used for generating an excitation light source, and the excitation light source is adjusted through a collimating lens and a condensing cover which are preset on the light source generator, so that the excitation light source irradiates a fluorescent substance which is preset on the position of the target cable equipment according to a preset irradiation angle;
the photoelectric detector is used for receiving fluorescence generated after the fluorescent substance is excited by the excitation light source, generating a photoelectric signal and transmitting the photoelectric signal to the fluorescence analysis module through a transmission optical fiber connected with the photoelectric detector;
the fluorescence analysis module is used for analyzing the photoelectric signal to obtain phase information corresponding to fluorescence and calculating the lag time of the fluorescence relative to the irradiation time of the excitation light source; and acquiring the substance type corresponding to the fluorescent substance, and calculating the joint measurement temperature according to the substance type and the lag time.
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