CN115575807A - Online monitoring device and monitoring method for circuit breaker - Google Patents
Online monitoring device and monitoring method for circuit breaker Download PDFInfo
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Abstract
The invention discloses an online monitoring device and a monitoring method of a circuit breaker, wherein the device comprises a data acquisition terminal, a data transmission terminal and a human-computer interaction terminal, wherein the data acquisition terminal is in data connection with the human-computer interaction terminal through the data transmission terminal; according to the invention, through the data acquisition terminal, mechanical data parameters of the circuit breaker, circuit data parameters of the circuit breaker and environmental data parameters of the circuit breaker are acquired, so that the monitoring device can monitor the circuit breaker more comprehensively, targeted monitoring can be realized, interference removal and characteristic parameter enhancement processing are carried out on the acquired data through the data receiving module, so that monitoring data which are consistent with actual data can be accurately acquired, finally, corresponding fault points on the circuit breaker are marked through the data feedback module, a monitoring report form is automatically generated according to the fault point marks, and meanwhile, an early warning unit is driven to give an early warning when the monitoring result is abnormal, so that the monitoring device can give an early warning to monitoring personnel in time and visually display the monitoring result.
Description
Technical Field
The invention relates to the technical field of monitoring of circuit breakers, in particular to an online monitoring device and an online monitoring method of a circuit breaker.
Background
The circuit breaker is a switch device which can close, bear and open current under normal loop conditions and can close, bear and open current under abnormal loop conditions within a specified time, the circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the using range of the circuit breaker, the division of high and low voltage boundary lines is fuzzy, and the circuit breaker is generally called a high-voltage electrical appliance with the voltage of more than 3 kV.
The breaker is used as an important primary protection device in a power system, is related to the safe reliability of the operation of the power system, is used for switching operation modes during normal operation, connects a device or a line into a circuit or quits the operation to play a control role, and can be quickly cut off when the device and the line have faults, so that the monitoring work of the breaker is particularly necessary, the monitoring work of the breaker can judge the operation condition of the breaker, and the safe operation level of the breaker is improved.
At present, because the grid network structure in many areas is weak, which causes vertex difficulty, thereby being difficult to regularly overhaul, and bringing great hidden danger to equipment operation, so that real-time monitoring on the operation state of a circuit breaker needs to be carried out by relying on a detection device, most of the existing circuit breaker detection devices have single function, monitoring objects are not comprehensive enough, and because circuit breaker parts are numerous, targeted monitoring is difficult to carry out, so that the monitoring blindness is caused, the monitoring data is deficient, the fault type can not be efficiently and accurately judged, the processing process after the monitoring data is collected is simple, the monitoring data which is consistent with the actual situation can not be accurately obtained, so that the monitoring result is not accurate enough, in addition, the monitoring feedback work is not efficient enough, early warning can not be carried out on related workers in time, and the monitoring result can not be visually displayed, thereby being not beneficial to timely and effectively overhauling the fault circuit breaker, therefore, the invention provides the on-line monitoring device of the circuit breaker and the monitoring method thereof, which are used for solving the problems existing in the prior art.
Disclosure of Invention
In view of the above problems, the present invention aims to provide an online monitoring device for a circuit breaker and a monitoring method thereof, which solve the problems that the existing circuit breaker detection device cannot accurately obtain monitoring data that is consistent with the actual monitoring object, cannot timely perform early warning on related workers, and can visually display the monitoring result.
In order to realize the purpose of the invention, the invention is realized by the following technical scheme: an on-line monitoring device of a circuit breaker comprises a data acquisition terminal, a data transmission terminal and a human-computer interaction terminal, wherein the data acquisition terminal is in data connection with the human-computer interaction terminal through the data transmission terminal, the data acquisition terminal comprises a mechanical data acquisition module for acquiring mechanical data parameters of the circuit breaker, a circuit data acquisition module for acquiring circuit data parameters of the circuit breaker, an environment data acquisition module for acquiring environment data parameters of the circuit breaker and a data transmission module for transmitting the acquired data to the data transmission terminal, the mechanical data acquisition module comprises an opening and closing data acquisition unit and a fuse wire monitoring unit for monitoring the fuse wire fusing condition of the circuit breaker, the circuit data acquisition module comprises a closing coil acquisition unit, a closing coil current acquisition unit, a closing coil voltage acquisition unit and a closing coil insulation resistance acquisition unit, the environment data acquisition module comprises a temperature data acquisition unit for detecting temperature values around the circuit breaker and a humidity data acquisition unit for detecting humidity values around the circuit breaker, and the data transmission module comprises a data arrangement unit for arranging the acquired data, a data compression unit for compressing the data after the data compression by a lossless data compression technology and a first data transmission unit for transmitting the data transmission terminal;
the data transmission terminal comprises a network environment detection module for detecting a data transmission network environment, a data transmission switching module for switching data transmission modes, a data transmission platform for providing different data transmission conditions and a cloud backup module for backing up acquired data, wherein the data transmission platform provides four data transmission modes including WiFi data transmission, 5G data transmission, NFC data transmission and optical fiber data transmission;
the man-machine interaction terminal comprises a data receiving module for receiving collected data, a data processing module for carrying out contrastive analysis processing on the collected data, a data contrast library for storing circuit breaker data characteristics under different faults, a data feedback module for feeding back a data analysis processing result and a terminal self-checking module, wherein the data receiving module comprises a second data transmission unit for receiving compressed data, a data decompression unit for decompressing the compressed data through a lossless data decompression technology, a data interference removing unit for removing data interference and a data enhancement unit for enhancing characteristic parameters in the data, and the terminal self-checking module carries out self-checking on the working state of the man-machine interaction terminal.
The further improvement is that: the opening and closing data acquisition unit comprises an opening and closing sound acquisition component, an opening and closing time acquisition unit and an opening and closing stroke acquisition unit, wherein the opening and closing sound acquisition component adopts a timer to acquire the opening and closing time quantum of the circuit breaker, the opening and closing stroke acquisition unit adopts a photoelectric stroke sensor to acquire the opening and closing displacement of the circuit breaker, and the opening and closing sound acquisition component adopts an audio collector to acquire the opening and closing sound data of the circuit breaker.
The further improvement lies in that: the specific steps of collecting the opening and closing displacement of the circuit breaker by the photoelectric travel sensor are as follows: the method comprises the steps of firstly installing a rotary grating on a main shaft of a circuit breaker operating mechanism, then converting a speed stroke signal into an electric signal by utilizing the relative motion of the rotary grating and a photoelectric stroke sensor through photoelectric conversion, and obtaining opening and closing stroke quantity data.
The further improvement lies in that: in the process of collecting the sound data by the switching-closing sound collection assembly, an echo cancellation technology is adopted to perform echo cancellation on the sound data, a self-adaptive filter is adopted to perform filtering processing on the sound data, and then a mode of combining traditional signal processing and a deep learning technology is adopted to further suppress residual echo after the echo cancellation self-adaptive filtering.
The further improvement is that: the data interference removing unit removes communication interference, white noise interference and random impulse interference in the decompressed data, wherein the white noise interference is filtered by an average filtering method, and the communication interference and the random impulse interference are filtered by a median filtering algorithm.
The further improvement lies in that: and the data enhancement unit adopts a class feature enhancement meta-learning algorithm to perform data enhancement on the data subjected to interference removal on a feature level, so that feature parameters in the data subjected to interference removal are enhanced.
The further improvement lies in that: the data comparison library is connected with the Internet and updated in real time, the data processing module comprises a data feature extraction unit, a data statistics classification unit, a data comparison unit and a result output unit, the data feature extraction unit extracts enhanced feature parameters, the data statistics classification unit performs statistics classification on the extracted feature parameters, the data comparison unit calls data features stored in the data comparison library according to the feature parameters after statistics classification and performs comparative analysis, and the result output unit sends comparative analysis results to the data feedback module.
The further improvement lies in that: the data feedback module includes unusual mark unit, unusual display element and early warning unit, unusual mark unit shows the fault point that corresponds on the circuit breaker when unusual at the contrastive analysis result of data processing module, unusual display element shows on the LED display screen on the human-computer interaction terminal and with monitoring result backup in historical database according to the fault point mark automatic generation monitoring statement, drives early warning unit simultaneously and carries out the early warning, early warning unit includes warning light and warning information sending chip, open the warning light after early warning unit starts and flash the suggestion to utilize warning information sending chip to send the prompt message to relevant staff.
The further improvement lies in that: still include intelligent power supply terminal and remote control terminal, intelligent power supply terminal includes external power supply and stand-by power supply, external power supply is by mains supply, stand-by power supply is by solar energy power supply, remote control terminal adopts smart mobile phone or panel computer and installs the remote control APP with the mutual terminal adaptation of human-computer.
An online monitoring method of a circuit breaker comprises the following steps:
the method comprises the following steps: firstly, a mechanical data acquisition module, a circuit data acquisition module and an environment data acquisition module in a data acquisition terminal respectively acquire mechanical data parameters of a circuit breaker, circuit data parameters of the circuit breaker and environment data parameters of the circuit breaker, and then a data transmission module sorts and compresses all acquired data and transmits the data to a data transmission terminal;
step two: the data transmission terminal detects the data transmission network environment, switches the data transmission mode with the highest transmission speed according to the detection result and transmits the compressed data to the man-machine interaction terminal;
step three: after the human-computer interaction terminal receives the compressed data, the data receiving module receives and decompresses the compressed data, the characteristic parameters in the compressed data are enhanced after the interference of the data is removed, then the data processing module extracts and statistically classifies the enhanced characteristic parameters, calls the data characteristics stored in the data comparison database according to the statistically classified characteristic parameters for comparison and analysis, and then sends the comparison and analysis result to the data feedback module;
step four: and finally, marking out a corresponding fault point on the circuit breaker according to the comparison and analysis result by the data feedback module, automatically generating a monitoring report according to the fault point mark, displaying the monitoring report on an LED display screen on the man-machine interaction terminal, backing up the monitoring result in a historical database, and driving an early warning unit to perform early warning when the monitoring result is abnormal so as to inform related workers of overhauling the circuit breaker.
The beneficial effects of the invention are as follows: the invention comprises a data acquisition terminal, a data transmission terminal and a man-machine interaction terminal, wherein the data acquisition terminal is composed of a mechanical data acquisition module, a circuit data acquisition module and an environmental data acquisition module, and respectively acquires mechanical data parameters of a circuit breaker, circuit data parameters of the circuit breaker and environmental data parameters of the circuit breaker, so that the monitoring device can monitor the circuit breaker more comprehensively, can realize targeted monitoring, avoids causing blindness of monitoring, enriches various bits of monitoring data, can efficiently and accurately judge fault types from detailed monitoring data, carries out interference removal and characteristic parameter enhancement processing on the acquired data through a data receiving module, extracts and statistically classifies the enhanced characteristic parameters through a data processing module, calls data characteristics stored in a data comparison library according to the statistically classified characteristic parameters, can accurately acquire monitoring data which is consistent with actual data, leads to more accurate monitoring results, finally marks corresponding fault points on the circuit breaker through a data feedback module, automatically generates monitoring reports according to the fault point marks, drives an early warning unit to carry out contrastive analysis when the monitoring results are abnormal, thereby enabling the monitoring device to display the monitoring results and effectively and timely feed back the early warning efficiency of monitoring personnel.
Drawings
Fig. 1 is a schematic diagram of a connection structure of a data acquisition terminal, a data transmission terminal and a human-computer interaction terminal according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1, the embodiment provides an online monitoring device of a circuit breaker, which includes a data acquisition terminal and a human-computer interaction terminal, the data acquisition terminal and the human-computer interaction terminal are in data connection via a data transmission terminal, the data acquisition terminal includes a mechanical data acquisition module, a circuit data acquisition module, an environmental data acquisition module and a data transmission module, the mechanical data acquisition module, the circuit data acquisition module and the environmental data acquisition module are all connected with the data transmission module, wherein the mechanical data acquisition module acquires mechanical data parameters of the circuit breaker, the circuit data acquisition module acquires circuit data parameters of the circuit breaker, the environmental data acquisition module acquires environmental data parameters of the circuit breaker, the data transmission module transmits the acquired data to the data transmission terminal, the mechanical data acquisition module is composed of a switching-closing data acquisition unit and a fuse monitoring unit, the circuit comprises a circuit data acquisition module, an environment data acquisition module and a humidity data acquisition module, wherein the circuit data acquisition module consists of a closing coil electric field intensity acquisition unit for detecting electric field intensity data, a closing coil current acquisition unit for acquiring closing coil current data, a closing coil voltage acquisition unit for acquiring closing coil voltage data and a closing coil insulation resistance acquisition unit for acquiring closing coil insulation resistance data, the environment data acquisition module consists of a temperature data acquisition unit and a humidity data acquisition unit, the temperature data acquisition unit selects a temperature sensor and detects the ambient temperature value of the circuit breaker, the humidity data acquisition unit selects a humidity sensor and detects the ambient humidity value of the circuit breaker, and the data transmission module comprises a data sorting unit, a data acquisition unit, a data processing unit and a data processing unit, the monitoring device comprises a data compression unit and a first data transmission unit, collected data are arranged through the data arrangement unit, the arranged data are compressed through the data compression unit, the compressed data are sent to a data transmission terminal through the first data transmission unit, a data acquisition terminal is formed by a mechanical data acquisition module, a circuit data acquisition module and an environment data acquisition module, and mechanical data parameters of a circuit breaker, circuit data parameters of the circuit breaker and environment data parameters of the circuit breaker are respectively acquired, so that the monitoring device can monitor the circuit breaker more comprehensively, can realize targeted monitoring, avoid causing blindness of monitoring, enrich all bits of monitoring data, and further efficiently and accurately judge fault types from detailed monitoring data;
the data transmission terminal comprises a network environment detection module, a data transmission switching module, a data transmission module and a cloud backup module, wherein the network environment detection module is used for detecting the data transmission network environment where the device is located, the data transmission platform provides four data transmission modes including WiFi data transmission, 5G data transmission, NFC data transmission and optical fiber data transmission, the data transmission switching module is used for switching the data transmission modes, and the cloud backup module is used for backing up acquired data so as to facilitate later-stage query and tracing;
the man-machine interaction terminal comprises a data receiving module, a data processing module, a data comparison base, a data feedback module and a terminal self-checking module, wherein the data receiving module is used for receiving collected data, the data processing module is used for carrying out comparison analysis processing on the collected data, the data comparison base stores circuit breaker data characteristic data under different faults and is connected with the Internet, real-time updating is facilitated, interference removal and characteristic parameter enhancement processing are carried out on the collected data through the data receiving module, the enhanced characteristic parameters are extracted and statistically classified through the data processing module, data characteristics stored in the data comparison base are called according to the statistically classified characteristic parameters to carry out comparison analysis, therefore, monitoring data which are consistent with actual data can be accurately obtained, the monitoring result is more accurate, and the data feedback module is used for feeding back the data analysis processing result, the terminal self-checking module carries out self-checking on the working state of the human-computer interaction terminal so as to ensure the normal operation of the human-computer interaction terminal, the data receiving module comprises a second data transmission unit, a data decompression unit, a data interference removing unit and a data enhancement unit, compressed data is received through the second data transmission unit, the compressed data is decompressed through the data decompression unit based on a lossless data decompression technology, data interference is removed through the data interference removing unit, characteristic parameters in the data are enhanced through the data enhancement unit, corresponding fault points on the circuit breaker are marked through the data feedback module, monitoring reports are automatically generated according to the fault point marks, and meanwhile, the early warning unit is driven to carry out early warning when the monitoring results are abnormal, so that the monitoring device can carry out early warning on monitoring personnel in time and visually display the monitoring results, the monitoring feedback efficiency is improved.
The divide-shut brake data acquisition unit includes that the divide-shut brake sound that adopts the time-recorder to gather the divide-shut brake time quantum of circuit breaker gathers the divide-shut brake time acquisition unit of the divide-shut brake displacement volume of circuit breaker, acquisition unit adopt photoelectric type stroke sensor to gather the divide-shut brake time acquisition unit of the divide-shut brake sound data of circuit breaker and adopt audio collector to gather the divide-shut brake stroke acquisition unit of the divide-shut brake displacement volume of circuit breaker, wherein gather the concrete step of the divide-shut brake displacement volume of circuit breaker and do: the method comprises the steps of firstly installing a rotary grating on a main shaft of a circuit breaker operating mechanism, then utilizing the relative motion of the rotary grating and a photoelectric stroke sensor, converting a speed stroke signal into an electric signal through photoelectric conversion, namely opening and closing stroke quantity data, carrying out echo cancellation on sound data by adopting an echo cancellation technology in the process of collecting the sound data, carrying out filtering processing on the sound data by adopting an adaptive filter, further inhibiting residual echo after echo cancellation adaptive filtering by adopting a mode of combining traditional signal processing and a deep learning technology, and carrying out echo cancellation and filtering processing on the data to enable detected data to be more accurate and clear and facilitate subsequent analysis.
The data interference removing unit filters white noise interference in decompressed data through an average filtering method, and filters communication interference and random pulse interference through a median filtering algorithm.
The data enhancement unit adopts a class feature enhancement meta-learning algorithm to perform data enhancement on the data subjected to interference removal on a feature level, so that feature parameters in the data subjected to interference removal are enhanced, and subsequent analysis and processing are further facilitated.
The data processing module comprises a data feature extraction unit for extracting the enhanced feature parameters, a data statistics and classification unit for performing statistics and classification on the extracted feature parameters, a data comparison unit for calling the data features stored in the data comparison database according to the feature parameters after the statistics and classification and performing comparison and analysis, and a result output unit for sending the comparison and analysis results to the data feedback module, so that the detected data can be processed in time and fed back quickly.
The data feedback module comprises an abnormal marking unit, an abnormal display unit and an early warning unit, wherein the abnormal marking unit is used for marking a corresponding fault point on the circuit breaker when the contrastive analysis result of the data processing module shows abnormality, the early warning unit comprises a warning lamp and a warning information sending chip, the warning lamp is started for flashing prompt after the early warning unit is started, the warning information sending chip is used for sending prompt information to related workers, the abnormal display unit automatically generates a monitoring report according to the fault point mark and displays the monitoring report on an LED display screen on the man-machine interaction terminal and backs up the monitoring result in a historical database, and the early warning unit is driven to carry out early warning at the same time, so that the monitoring workers can find the abnormality of the monitoring data in time.
This on-line monitoring device of circuit breaker passes through the power supply of intelligent power supply terminal to carry out remote control through remote control terminal, intelligent power supply terminal includes by mains supply's external power supply and by the stand-by power supply of solar energy power supply, remote control terminal is hand-carried by monitoring personnel, remote control terminal adopts smart mobile phone or panel computer and installs the remote control APP that is used for remote control human-computer interaction terminal, the monitoring personnel of being convenient for carry out remote monitoring.
Example two
The embodiment provides an online monitoring method of a circuit breaker, which comprises the following steps:
the method comprises the following steps: firstly, a mechanical data acquisition module, a circuit data acquisition module and an environment data acquisition module in a data acquisition terminal respectively acquire mechanical data parameters of a circuit breaker, circuit data parameters of the circuit breaker and environment data parameters of the circuit breaker, and then a data transmission module is used for arranging and compressing all acquired data and transmitting the data to a data transmission terminal;
step two: the data transmission terminal detects the data transmission network environment, switches the data transmission mode with the highest transmission speed according to the detection result and transmits the compressed data to the man-machine interaction terminal;
step three: after the human-computer interaction terminal receives the compressed data, the data receiving module receives and decompresses the compressed data, the characteristic parameters in the compressed data are enhanced after the interference of the data is removed, then the data processing module extracts and statistically classifies the enhanced characteristic parameters, calls the data characteristics stored in the data comparison database according to the statistically classified characteristic parameters for comparison and analysis, and then sends the comparison and analysis result to the data feedback module;
step four: and finally, marking out a corresponding fault point on the circuit breaker according to the comparison and analysis result by the data feedback module, automatically generating a monitoring report according to the fault point mark, displaying the monitoring report on an LED display screen on the human-computer interaction terminal, backing up the monitoring result in a historical database, and driving an early warning unit to carry out early warning when the monitoring result is abnormal so as to inform related workers to overhaul the circuit breaker.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides an on-line monitoring device of circuit breaker which characterized in that: the circuit breaker fuse wire fusing monitoring system comprises a data acquisition terminal, a data transmission terminal and a human-computer interaction terminal, wherein the data acquisition terminal is in data connection with the human-computer interaction terminal through the data transmission terminal, the data acquisition terminal comprises a mechanical data acquisition module for acquiring mechanical data parameters of a breaker, a circuit data acquisition module for acquiring circuit parameters of the breaker, an environment data acquisition module for acquiring environment data parameters of the breaker and a data transmission module for transmitting the acquired data to the data transmission terminal, the mechanical data acquisition module comprises a switching-on and switching-off data acquisition unit and a fuse wire monitoring unit for monitoring the fusing condition of a fuse wire of the breaker, the circuit data acquisition module comprises a switching-on coil electric field strength acquisition unit, a switching-on coil current acquisition unit, a switching-on coil voltage acquisition unit and a switching-on coil insulation resistance acquisition unit, the environment data acquisition module comprises a temperature data acquisition unit for detecting temperature values around the breaker and a humidity data acquisition unit for detecting humidity values around the breaker, and the data transmission module comprises a data arrangement unit for arranging the acquired data, a data compression unit for compressing the arranged data through a lossless data compression technology and a first data transmission unit for transmitting the compressed data to the data transmission terminal;
the data transmission terminal comprises a network environment detection module for detecting a data transmission network environment, a data transmission switching module for switching data transmission modes, a data transmission platform for providing different data transmission conditions and a cloud backup module for backing up acquired data, wherein the data transmission platform provides four data transmission modes including WiFi data transmission, 5G data transmission, NFC data transmission and optical fiber data transmission;
the man-machine interaction terminal comprises a data receiving module for receiving collected data, a data processing module for carrying out contrastive analysis processing on the collected data, a data contrast library for storing circuit breaker data characteristics under different faults, a data feedback module for feeding back a data analysis processing result and a terminal self-checking module, wherein the data receiving module comprises a second data transmission unit for receiving compressed data, a data decompression unit for decompressing the compressed data through a lossless data decompression technology, a data interference removing unit for removing data interference and a data enhancement unit for enhancing characteristic parameters in the data, and the terminal self-checking module carries out self-checking on the working state of the man-machine interaction terminal.
2. The on-line monitoring device of the circuit breaker according to claim 1, characterized in that: the divide-shut brake data acquisition unit includes divide-shut brake sound collection subassembly, divide-shut brake time collection unit and divide-shut brake stroke collection unit, divide-shut brake sound collection subassembly adopts the time-recorder to gather the divide-shut brake time quantum of circuit breaker, divide-shut brake stroke collection unit adopts photoelectric type stroke sensor to gather the divide-shut brake displacement volume of circuit breaker, divide-shut brake sound collection subassembly adopts the divide-shut brake sound data of audio collector collection circuit breaker.
3. The on-line monitoring device of the circuit breaker according to claim 2, wherein: the specific steps of collecting the opening and closing displacement of the circuit breaker by the photoelectric travel sensor are as follows: the method comprises the steps of firstly installing a rotary grating on a main shaft of a circuit breaker operating mechanism, then converting a speed stroke signal into an electric signal by utilizing the relative motion of the rotary grating and a photoelectric stroke sensor through photoelectric conversion, and obtaining opening and closing stroke quantity data.
4. The on-line monitoring device of the circuit breaker according to claim 2, wherein: in the process of collecting the sound data by the switching-closing sound collection assembly, an echo cancellation technology is adopted to perform echo cancellation on the sound data, a self-adaptive filter is adopted to perform filtering processing on the sound data, and then a mode of combining traditional signal processing and a deep learning technology is adopted to further suppress residual echo after echo cancellation self-adaptive filtering.
5. The on-line monitoring device of the circuit breaker according to claim 1, characterized in that: the data interference removing unit removes communication interference, white noise interference and random pulse interference in decompressed data, wherein the white noise interference is filtered by an average filtering method, and the communication interference and the random pulse interference are filtered by a median filtering algorithm.
6. The on-line monitoring device of the circuit breaker according to claim 1, wherein: and the data enhancement unit adopts a class feature enhancement meta-learning algorithm to perform data enhancement on the data subjected to interference removal on a feature level, so that feature parameters in the data subjected to interference removal are enhanced.
7. The on-line monitoring device of the circuit breaker according to claim 1, characterized in that: the data comparison library is connected with the Internet and updated in real time, the data processing module comprises a data feature extraction unit, a data statistics classification unit, a data comparison unit and a result output unit, the data feature extraction unit extracts enhanced feature parameters, the data statistics classification unit performs statistics classification on the extracted feature parameters, the data comparison unit calls data features stored in the data comparison library according to the feature parameters after statistics classification and performs comparative analysis, and the result output unit sends comparative analysis results to the data feedback module.
8. The on-line monitoring device of the circuit breaker according to claim 1, wherein: the data feedback module comprises an abnormal marking unit, an abnormal display unit and an early warning and warning unit, the abnormal marking unit marks out a corresponding fault point on the circuit breaker when the contrastive analysis result of the data processing module shows abnormality, the abnormal display unit automatically generates a monitoring report according to the fault point mark, displays the monitoring result on an LED display screen on the man-machine interaction terminal and backs up the monitoring result in a historical database, and simultaneously drives the early warning and warning unit to give an early warning, the early warning and warning unit comprises a warning lamp and a warning information sending chip, the warning lamp is started to flash and prompt after the early warning and warning unit is started, and the warning information sending chip is utilized to send prompt information to related workers.
9. The on-line monitoring device of the circuit breaker according to claim 1, characterized in that: still include intelligent power supply terminal and remote control terminal, intelligent power supply terminal includes external power supply and stand-by power supply, external power supply is by mains supply, stand-by power supply is by solar energy power supply, remote control terminal adopts smart mobile phone or panel computer and installs the remote control APP with the mutual terminal adaptation of human-computer.
10. An online monitoring method of a circuit breaker is characterized by comprising the following steps:
the method comprises the following steps: firstly, a mechanical data acquisition module, a circuit data acquisition module and an environment data acquisition module in a data acquisition terminal respectively acquire mechanical data parameters of a circuit breaker, circuit data parameters of the circuit breaker and environment data parameters of the circuit breaker, and then a data transmission module sorts and compresses all acquired data and transmits the data to a data transmission terminal;
step two: the data transmission terminal detects the data transmission network environment, switches the data transmission mode with the highest transmission speed according to the detection result and transmits the compressed data to the man-machine interaction terminal;
step three: after the human-computer interaction terminal receives the compressed data, the data receiving module receives and decompresses the compressed data, the characteristic parameters of the compressed data are enhanced after the interference of the data is removed, then the data processing module extracts and statistically classifies the enhanced characteristic parameters, calls the data characteristics stored in the data comparison database according to the statistically classified characteristic parameters for comparison and analysis, and then sends the comparison and analysis result to the data feedback module;
step four: and finally, marking out a corresponding fault point on the circuit breaker according to the comparison and analysis result by the data feedback module, automatically generating a monitoring report according to the fault point mark, displaying the monitoring report on an LED display screen on the human-computer interaction terminal, backing up the monitoring result in a historical database, and driving an early warning unit to carry out early warning when the monitoring result is abnormal so as to inform related workers to overhaul the circuit breaker.
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