CN110868241A - Underground cable fault early warning method and device based on multiple models - Google Patents
Underground cable fault early warning method and device based on multiple models Download PDFInfo
- Publication number
- CN110868241A CN110868241A CN201911020633.8A CN201911020633A CN110868241A CN 110868241 A CN110868241 A CN 110868241A CN 201911020633 A CN201911020633 A CN 201911020633A CN 110868241 A CN110868241 A CN 110868241A
- Authority
- CN
- China
- Prior art keywords
- early warning
- fault
- data
- current
- underground cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000007613 environmental effect Effects 0.000 claims abstract description 65
- 238000012549 training Methods 0.000 claims abstract description 36
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 238000004590 computer program Methods 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000010606 normalization Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/06—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using power transmission lines
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
Abstract
The invention discloses a multi-model-based underground cable fault early warning method and a device, wherein the method comprises the following steps: acquiring current environment data and current operation data of the underground cable through an underground cable acquisition system; inputting the current environmental data and the current operation data into a pre-trained fault early warning model to obtain a single model prediction result; obtaining a fault prediction result according to the single model prediction result and a single model weight obtained by pre-training; judging whether the underground cable fails according to the failure prediction result; when the underground cable is judged to have a fault, acquiring the position information of the underground cable, and generating early warning information according to the position information of the underground cable; and sending the early warning information to a monitoring terminal. The method can improve the efficiency.
Description
Technical Field
The invention relates to a multi-model-based underground cable fault early warning method and device, and belongs to the field of big data processing.
Background
Cables buried underground are often exploded due to the temperature rise of the cables during power transmission; or, the cable is damaged due to water inflow of the underground laying pipeline, so that normal transmission of the cable is influenced.
In the conventional technology, in order to monitor underground cables, the cables need to be manually checked one by one, so that the monitoring efficiency is reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a multi-model-based underground cable fault early warning method and device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-model-based underground cable fault early warning method is characterized by comprising the following steps:
acquiring current environment data and current operation data of the underground cable through an underground cable acquisition system;
inputting the current environmental data and the current operation data into a plurality of pre-trained fault early warning models to obtain single model prediction results;
obtaining a fault prediction result according to the single model prediction result and a single model weight obtained by pre-training;
judging whether the underground cable fails according to the failure prediction result;
when the underground cable is judged to have a fault, acquiring the position information of the underground cable, and generating early warning information according to the position information of the underground cable;
and sending the early warning information to a monitoring terminal.
In one embodiment, the generation manner of the fault early warning model includes:
acquiring historical environment data, historical operation data and corresponding historical fault information corresponding to the underground cable;
cleaning the historical environment data and the historical operation data;
training the cleaned historical environment data, historical operation data and corresponding historical fault information to obtain a fault early warning model;
the training mode of the single model weight obtained by pre-training comprises the following steps:
calculating the similarity between a plurality of single model prediction results and the historical fault information;
obtaining a statistic value of the similarity, and obtaining a ratio corresponding to each single model prediction result according to the statistic value and the similarity;
and carrying out normalization processing on the ratio to obtain the single model weight.
In one embodiment, the inputting the current environmental data and the current operating data into a plurality of pre-trained fault early warning models to obtain a single-model prediction result includes:
acquiring the number of current fault early warning models capable of predicting faults;
selecting a corresponding number of idle threads from a preset thread pool according to the number;
and inputting the current environment data and the current operation data into a pre-trained fault early warning model in the idle threads to obtain a single-model prediction result, and operating one fault early warning model in each idle thread.
In one embodiment, the inputting the current environmental data and the current operating data into a pre-trained fault early warning model to obtain a single-model prediction result includes:
acquiring the current environment data and the current geographic position corresponding to the current operation data;
inquiring a fault early warning model corresponding to the current geographic position;
and inputting the current environmental data and the current operation data into the inquired fault early warning model to obtain a single model prediction result.
In one embodiment, the querying a fault warning model corresponding to the current geographic location includes:
acquiring a power grid platform corresponding to the current geographic position;
inputting the current environmental data and the current operation data to generate a prediction instruction, and sending the prediction instruction to the power grid platform, wherein the prediction instruction is used for instructing the power grid platform to inquire the latest fault early warning model locally stored by the power grid platform;
the inputting the current environmental data and the current operation data into the queried fault early warning model to obtain a single model prediction result comprises the following steps:
and receiving a single model prediction result returned by the power grid platform, wherein the single model prediction result is obtained by inputting current environment data and the current operation data into the inquired fault early warning model by the power grid platform.
In one embodiment, the generating early warning information according to the position information of the underground cable comprises:
acquiring a city map corresponding to the position information of the underground cable;
and positioning the position of the cable in the city map according to the position of the underground cable, and displaying the cable through an early warning mark to obtain early warning information.
In one embodiment, the current environmental data includes one or more of temperature data, water sensitivity data, ambient gas data, and displacement data, and the operational data includes, but is not limited to, partial discharge signals.
A multi-model based underground cable fault early warning apparatus, the apparatus comprising:
the acquisition module is used for acquiring current environmental data and current operation data of the underground cable through the underground cable acquisition system;
the single model prediction module is used for inputting the current environment data and the current operation data into a pre-trained fault early warning model to obtain a single model prediction result;
the comprehensive prediction module is used for obtaining a fault prediction result according to the single model prediction result and single model weight obtained by pre-training;
the judging module is used for judging whether the underground cable has faults according to the fault prediction result;
the early warning information generation module is used for acquiring the position information of the underground cable when the underground cable is judged to have a fault, and generating early warning information according to the position information of the underground cable;
and the sending module is used for sending the early warning information to the monitoring terminal.
A computer device comprising a memory storing a computer program and a processor implementing the steps of any of the methods described above when the processor executes the computer program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any of the above.
According to the underground cable fault early warning method and device based on the multiple models, whether the underground cable breaks down or not can be judged by collecting the current environment data and the current operation data of the underground cable and inputting the collected current environment data and the collected current operation data of the underground cable into the pre-trained fault early warning model, when the underground cable possibly breaks down, early warning information is generated according to the geographical position of the underground cable and is sent to the terminal to be displayed, the cables do not need to be manually checked one by one, and the efficiency is improved.
Drawings
FIG. 1 is an application environment diagram of a multi-model-based underground cable fault early warning method provided by the invention;
FIG. 2 is a flow chart of a multi-model based underground cable fault early warning method provided by the present invention;
FIG. 3 is a block diagram of a multi-model based underground cable fault warning device provided by the present invention;
FIG. 4 is a block diagram of a computer device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The underground cable fault early warning method based on multiple models can be applied to the application environment shown in figure 1. The underground cable collection system 102 communicates with the server 104 through a network, and the monitoring terminal 106 communicates with the server through the network. The underground cable acquisition system is used for acquiring current environment data and current operation data of underground cables and sending the acquired current environment data and current operation data to the server 104, so that the server can input the current environment data and the current operation data into a pre-trained fault early warning model to obtain a single-model prediction result, then calculate according to the single-model prediction result and weights corresponding to the single-model prediction result obtained by pre-training to obtain a fault prediction result, so that the server can judge whether the underground cables are in fault according to the fault prediction result, when the underground cables are judged to be in fault, the server 104 can obtain position information of the faulty underground cables, generate early warning information according to the position information of the underground cables, send the early warning information to the monitoring terminal 106, and further the cables do not need to be manually checked one by one, the efficiency is improved. The monitoring terminal 106 may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, and the server 104 may be implemented by an independent server or a server cluster composed of a plurality of servers.
In one embodiment, as shown in fig. 2, a method for pre-warning a fault of an underground cable based on multiple models is provided, which is illustrated by taking the method as an example applied to a server in fig. 1, and includes the following steps:
s202: and acquiring current environment data and current operation data of the underground cable through an underground cable acquisition system.
Specifically, the current environmental data includes one or more of temperature data, water sensitive data, environmental gas data, and displacement data, the operational data includes, but is not limited to, partial discharge signals, and the current operational data may also refer to the magnitude of current in the underground cable, etc. Underground cable collection systems are installed underground, for example, at the junction of underground cables, and are used for collecting environmental data and operational data at the junction of underground cables. After the underground cable acquisition system acquires the environmental data and the operation data of the underground cable, the environmental data and the operation data are sent to the server, so that the server can judge whether the underground cable breaks down or not after processing. In order to ensure the data queryability, the underground cable acquisition system and the geographical position of the underground cable are sent to the server together when sending data, and optionally, the label of the underground cable can be preset, and the corresponding relation between the label and the position of the underground cable is established, so that when the service receives the data sent by the underground cable acquisition system with a certain label, the geographical position information corresponding to the underground cable can be queried according to the label.
S204: and inputting the current environmental data and the current operation data into a pre-trained fault early warning model to obtain a single model prediction result.
S205: and obtaining a fault prediction result according to the single model prediction result and the single model weight obtained by pre-training.
S206: and judging whether the underground cable has faults or not according to the fault prediction result.
Specifically, the fault early warning model is a training model which is generated according to historical data and used for judging whether the underground cable has faults or not, the input of the model is current environment data and current operation data, and the output of the model is the probability of the underground cable having faults. In order to ensure the accuracy of prediction, a plurality of single models can be trained, so that the server inputs the current environment data and the current operation data into a plurality of fault early warning models to obtain a plurality of single model prediction results, and optionally, the server can process the single models in a parallel processing mode, so that the processing efficiency can be improved. For example, the server first determines the number of models that can be currently used for single model prediction, which is due to the development of technology, more models can be added to ensure the validity of data, then a preset number of idle threads are obtained from a thread pool according to the number, and then processing is performed according to the selected threads to obtain a plurality of single model prediction results.
Optionally, the server may input the current environmental data and the current operating data into a fault early warning model trained in advance to obtain a fault prediction result, compare the fault prediction result with a predetermined threshold, and determine that the underground cable has a fault if the fault prediction result is greater than the predetermined threshold, otherwise, determine that the underground cable has no fault. Optionally, when the fault early warning model processes the current environment data and the current operation data, the current environment data may be compared with the environment data of the historical fault during the training of the model, the current operation data may be compared with the operation data of the historical fault, so as to obtain the similarity, and then all the similarities are integrated to obtain the single model prediction result.
After obtaining the single model prediction result, the server combines the single model prediction result with the single model weight obtained by pre-training to obtain the fault prediction result, for example, if there are 4 single models, each single model prediction result is A, B, C, D, and each weight is a, B, C, D, then the fault prediction result is a + B + C + D.
S208: and when the underground cable is judged to have a fault, acquiring the position information of the underground cable, and generating early warning information according to the position information of the underground cable.
S210: and sending the early warning information to the monitoring terminal.
Specifically, when the server determines that the underground cable has a fault, the server can acquire the position information of the underground cable, then combine the position information and the fault information to obtain the early warning information, and send the early warning information to a certain monitoring terminal so that the monitoring terminal can process the early warning information, timely deal with the faulty underground cable, and perform corresponding processing.
According to the underground cable fault early warning method based on the multiple models, whether the underground cable breaks down or not can be judged by collecting the current environment data and the current operation data of the underground cable and inputting the collected current environment data and the collected current operation data of the underground cable into the pre-trained fault early warning model, when the underground cable possibly breaks down, early warning information is generated according to the geographical position of the underground cable and is sent to the terminal to be displayed, the cables do not need to be manually checked one by one, and the efficiency is improved.
In one embodiment, the generation manner of the fault early warning model includes: acquiring historical environment data, historical operation data and corresponding historical fault information corresponding to the underground cable; cleaning historical environmental data and historical operating data; and training the cleaned historical environment data, historical operation data and corresponding historical fault information to obtain a fault early warning model. The training mode of the single model weight obtained by pre-training comprises the following steps: calculating the similarity between a plurality of single model prediction results and the historical fault information; obtaining a statistic value of the similarity, and obtaining a ratio corresponding to each single model prediction result according to the statistic value and the similarity; and carrying out normalization processing on the ratio to obtain the single model weight.
In one embodiment, the cleaning of the historical environmental data and the historical operating data comprises the following steps: deleting null data in the historical environment data and the historical operating data; and grouping the historical environment data and the historical operation data after the null data is deleted according to the geographic position. Therefore, the fault early warning model is obtained by training the cleaned historical environment data, historical operation data and corresponding historical fault information, and comprises the following steps: and training the grouped historical environment data, historical operation data and corresponding historical fault information respectively according to the geographic positions to obtain fault early warning models corresponding to the geographic positions.
In one embodiment, inputting the current environmental data and the current operating data into a pre-trained fault early warning model to obtain a fault prediction result, includes: acquiring current environment data and a current geographic position corresponding to current operation data; inquiring a fault early warning model corresponding to the current geographic position; and inputting the current environmental data and the current operation data into the inquired fault early warning model to obtain a fault prediction result.
In one embodiment, querying the fault early warning model corresponding to the current geographic location includes: acquiring a power grid platform corresponding to the current geographic position; inputting current environmental data and current operating data into a prediction instruction, and sending the prediction instruction to a power grid platform, wherein the prediction instruction is used for indicating the power grid platform to inquire a latest fault early warning model locally stored by the power grid platform; inputting the current environmental data and the current operation data into the inquired fault early warning model to obtain a fault prediction result, wherein the fault prediction result comprises the following steps: and receiving a fault prediction result returned by the power grid platform, wherein the fault prediction result is obtained by inputting current environment data and current operation data into the inquired fault early warning model by the power grid platform.
Specifically, the server may obtain historical environment data, historical operation data, and corresponding historical fault information corresponding to the underground cable, that is, one historical environment data, one historical operation data, and one historical fault information corresponding to one historical operation data, and then wash the historical environment data and the historical operation data. The cleaning process comprises the steps of deleting empty data in the historical environment data and the historical operation data, and then deleting the historical environment data and the historical operation data according to the geographical position information, so that the historical environment data and the historical operation data are grouped, because geology and the like in different regions possibly affect underground cables, the corresponding relation between the geographical position information and the historical environment data and the historical operation data is established, and the server can respectively train according to the geographical position information to obtain a fault early warning model corresponding to each geographical position information. And when data processing is carried out, the server firstly selects a proper model according to the geographic position of the underground cable corresponding to the received current environment data and the current operation data, and then inputs the current environment data and the current operation data into the selected model to obtain a corresponding single model prediction result. And then calculating according to the single model prediction result and the single model weight obtained by pre-training to obtain a corresponding fault prediction result.
The training mode of the single model weight is as follows: the similarity between the obtained single model prediction result and the historical fault information is calculated, for example, the similarity may be represented by a difference, for example, if there is a fault, the historical fault information is 1, if there is no fault, the historical fault information is 0, and the single model prediction result is the probability of the fault, so the weight may be that the similarity, i.e., the similarity between the probability value and 1 or 0, is first calculated, and may be represented by a difference, i.e., a difference between 0, where the average of the differences of all samples is calculated as the similarity of the single model. Then, a statistical value of the similarity is calculated, namely the sum of the similarities is calculated, and then the proportion of each similarity is obtained, where the training of the single model weight at one geographic location is used for illustration, and assuming that there are 4 models, the similarity of each model is m1, m2, m3 and m4, the proportion of the first single model is m1/(m1+ m2+ m3+ m4), the proportion of the second single model is m2/(m1+ m2+ m3+ m4), the proportion of the third single model is m3/(m1+ m2+ m3+ m4), the proportion of the fourth single model is m4/(m1+ m2+ m3+ m4), and after the calculation is completed, normalization processing is performed to obtain the single model weight.
Optionally, the step of generating a corresponding fault early warning model according to the historical environmental data, the historical operating data, and the corresponding historical fault information may include: acquiring reference environment data and reference operation data in a preset time period before the time point of the historical environment data and the historical operation data, generating an environment data trend graph according to the reference environment data and the historical environment data, generating an operation data trend graph according to the reference operation data and the historical operation data, and training the environment data trend graph, the operation data trend graph and the historical fault information to obtain a fault early warning model.
The embodiment sufficiently considers the change of environmental variables such as temperature, gas composition and the like, for example, if the underground cable fault is caused by fire, the temperature is not abrupt change, so whether the underground cable fault or the underground cable is about to fault can be judged according to the change trend of the temperature, and if the underground cable fault or the underground cable is about to fault, the underground cable fault can be timely processed so as to solve the problem before the fault occurs.
Accordingly, the step of inputting the current environmental data and the current operating data into the pre-trained fault early warning model to obtain the fault prediction result may be to obtain a time point of the current environmental data and the current operating data, obtain reference environmental data and reference operating data within a preset time period before the time point, generate an environmental data trend graph according to the current environmental data and the reference environmental data, generate an operating data trend graph according to the current operating data and the reference operating data, then calculate a first similarity between the environmental data trend graph and the environmental data trend graph of the fault in the model, and a second similarity between the operating data trend graph and the operating data trend graph of the fault in the model, finally calculate a comprehensive similarity according to the first similarity and the second similarity, and then determine whether the comprehensive similarity is greater than a preset threshold value, if the error rate is larger than the threshold value, the fault or possible fault is judged, and if the error rate is not larger than the threshold value, no problem exists currently.
Optionally, for the query step of the fault early warning model, the server may store each generated fault early warning model into a corresponding power grid platform, that is, into a power grid platform in a corresponding geographic location according to the geographic location information, so that when the server acquires the geographic location corresponding to the current environmental data and the current operating data, the server first acquires the power grid platform corresponding to the current geographic location, then inputs the current environmental data and the current operating data to generate a prediction instruction, and sends the prediction instruction to the power grid platform, so that the power grid platform can input the current environmental data and the current operating data into the queried fault early warning model to obtain a single model prediction result, then calculates the fault prediction result according to the single model prediction result and the corresponding single model weight, and returns the fault prediction result to the server, so that the server can perform subsequent processing according to the result.
In the embodiment, a training mode of the fault early warning model is given, historical data is fully considered by the fault early warning model, and the rule of the historical data is summarized, so that the current data can be predicted more accurately.
In one embodiment, generating the early warning information according to the position information of the underground cable comprises the following steps: acquiring a city map corresponding to the position information of the underground cable; and positioning the position of the cable in the city map according to the position of the underground cable, and displaying the cable through the early warning mark to obtain early warning information.
Specifically, in order to implement visualization processing, after it is determined that an underground cable has a fault, the server acquires a city map, which may also be an area map, corresponding to the position information of the underground cable, so that the server locates the position of the underground cable in the city map, and then displays the position by using an early warning identifier, such as an exclamation mark.
In the embodiment, the fault information is displayed in the city map, so that the method is more intuitive.
It should be understood that, although the steps in the flowchart of fig. 2 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 2 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 3, there is provided a multi-model-based underground cable fault warning apparatus including: the system comprises an acquisition module 100, a single model prediction module 200, a comprehensive prediction module 300, a judgment module 400, an early warning information generation module 500 and a sending module 600, wherein:
and the acquisition module 100 is used for acquiring the current environment data and the current operation data of the underground cable through the underground cable acquisition system.
And the single model prediction module 200 is configured to input the current environmental data and the current operating data into the pre-trained fault early warning model to obtain a single model prediction result.
And the comprehensive prediction module 300 is configured to obtain a fault prediction result according to the single model prediction result and a single model weight obtained through pre-training.
And the judging module 400 is used for judging whether the underground cable has a fault according to the fault prediction result.
And the early warning information generating module 500 is configured to, when it is determined that the underground cable fails, acquire position information of the underground cable, and generate early warning information according to the position information of the underground cable.
The sending module 600 is configured to send the warning information to the monitoring terminal.
In one embodiment, the apparatus further comprises:
and the historical data acquisition module is used for acquiring historical environmental data, historical operating data and corresponding historical fault information corresponding to the underground cable.
And the cleaning module is used for cleaning the historical environmental data and the historical operating data.
And the model generation module is used for training the cleaned historical environment data, historical operation data and corresponding historical fault information to obtain a fault early warning model.
The similarity calculation module is used for calculating the similarity between the single model prediction results and the historical fault information;
the proportion calculation module is used for acquiring the statistic value of the similarity and obtaining the proportion corresponding to each single model prediction result according to the statistic value and the similarity;
and the normalization module is used for performing normalization processing on the ratio to obtain the single model weight.
In one embodiment, the single model prediction module 200 includes:
the quantity acquisition unit is used for acquiring the quantity of the current fault early warning models capable of performing fault prediction;
the thread obtaining unit is used for selecting a corresponding number of idle threads from a preset thread pool according to the number;
and the single-model prediction unit is used for inputting the current environment data and the current operation data into a pre-trained fault early warning model in the idle threads to obtain a single-model prediction result, and one fault early warning model is operated in each idle thread.
In one embodiment, the prediction module 200 comprises:
and the information acquisition unit is used for acquiring the current environment data and the current geographic position corresponding to the current operation data.
And the query unit is used for querying the fault early warning model corresponding to the current geographic position.
And the prediction unit is used for inputting the current environmental data and the current operation data into the inquired fault early warning model to obtain a fault prediction result.
In one embodiment, the query unit comprises:
and the platform acquisition unit is used for acquiring the power grid platform corresponding to the current geographic position.
And the instruction sending unit is used for generating a prediction instruction according to the current environment data and the current operation data, and sending the prediction instruction to the power grid platform, wherein the prediction instruction is used for instructing the power grid platform to inquire the latest fault early warning model locally stored in the power grid platform.
The prediction module 200 is further configured to receive a fault prediction result returned by the power grid platform, where the fault prediction result is obtained by inputting current environmental data and current operating data into the queried fault early warning model by the power grid platform.
In one embodiment, the warning information generating module 400 includes:
and the map acquisition unit is used for acquiring a city map corresponding to the position information of the underground cable.
And the early warning unit is used for positioning the cable position in the city map according to the underground cable position and displaying the cable position through the early warning mark to obtain early warning information.
In one embodiment, the current environmental data includes one or more of temperature data, water sensitivity data, ambient gas data, and displacement data, and the operational data includes, but is not limited to, partial discharge signals.
For the specific definition of the underground cable fault early warning device based on multiple models, reference may be made to the above definition of the underground cable fault early warning method based on multiple models, which is not described herein again. All or part of each module in the underground cable fault early warning device based on the multi-model can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 4. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing current environmental data and current operating data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a multi-model based underground cable fault warning method.
Those skilled in the art will appreciate that the architecture shown in fig. 4 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, there is provided a computer device comprising a memory storing a computer program and a processor implementing the following steps when the processor executes the computer program: acquiring current environment data and current operation data of the underground cable through an underground cable acquisition system; inputting current environmental data and current operating data into a pre-trained fault early warning model to obtain a single-model prediction result; obtaining a fault prediction result according to the single model prediction result and a single model weight obtained by pre-training; judging whether the underground cable fails according to the failure prediction result; when the underground cable is judged to have a fault, acquiring the position information of the underground cable, and generating early warning information according to the position information of the underground cable; and sending the early warning information to the monitoring terminal.
In one embodiment, the fault pre-warning model generated when the processor executes the computer program is generated in a manner that includes: acquiring historical environment data, historical operation data and corresponding historical fault information corresponding to the underground cable; cleaning historical environmental data and historical operating data; and training the cleaned historical environment data, historical operation data and corresponding historical fault information to obtain a fault early warning model. The training mode of the single model weight obtained by pre-training realized when the processor executes the computer program comprises the following steps: calculating the similarity between a plurality of single model prediction results and the historical fault information; obtaining a statistic value of the similarity, and obtaining a ratio corresponding to each single model prediction result according to the statistic value and the similarity; and carrying out normalization processing on the ratio to obtain the single model weight.
In one embodiment, the inputting the current environmental data and the current operating data into a plurality of pre-trained fault early warning models to obtain a single-model prediction result when the processor executes the computer program includes: acquiring the number of current fault early warning models capable of predicting faults; selecting a corresponding number of idle threads from a preset thread pool according to the number; and inputting the current environment data and the current operation data into a pre-trained fault early warning model in the idle threads to obtain a single-model prediction result, and operating one fault early warning model in each idle thread.
In one embodiment, the inputting of the current environmental data and the current operating data into the pre-trained fault early warning model to obtain the fault prediction result, which is implemented when the processor executes the computer program, includes: acquiring current environment data and a current geographic position corresponding to current operation data; inquiring a fault early warning model corresponding to the current geographic position; and inputting the current environmental data and the current operation data into the inquired fault early warning model to obtain a fault prediction result.
In one embodiment, the querying of the fault pre-warning model corresponding to the current geographic location, as implemented by the processor executing the computer program, comprises: acquiring a power grid platform corresponding to the current geographic position; inputting current environmental data and current operating data into a prediction instruction, and sending the prediction instruction to a power grid platform, wherein the prediction instruction is used for indicating the power grid platform to inquire a latest fault early warning model locally stored by the power grid platform; the method for inputting the current environmental data and the current operation data into the inquired fault early warning model to obtain the fault prediction result when the processor executes the computer program comprises the following steps: and receiving a fault prediction result returned by the power grid platform, wherein the fault prediction result is obtained by inputting current environment data and current operation data into the inquired fault early warning model by the power grid platform.
In one embodiment, the generating of the early warning information from the location information of the underground cable, as implemented by the processor executing the computer program, comprises: acquiring a city map corresponding to the position information of the underground cable; and positioning the position of the cable in the city map according to the position of the underground cable, and displaying the cable through the early warning mark to obtain early warning information.
In one embodiment, the current environmental data involved in the execution of the computer program by the processor includes one or more of temperature data, water sensitive data, ambient gas data, and displacement data, and the operational data includes, but is not limited to, partial discharge signals.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring current environment data and current operation data of the underground cable through an underground cable acquisition system; inputting current environmental data and current operating data into a pre-trained fault early warning model to obtain a single-model prediction result; obtaining a fault prediction result according to the single model prediction result and a single model weight obtained by pre-training; judging whether the underground cable fails according to the failure prediction result; when the underground cable is judged to have a fault, acquiring the position information of the underground cable, and generating early warning information according to the position information of the underground cable; and sending the early warning information to the monitoring terminal.
In one embodiment, the fault pre-warning model generated when the computer program is executed by the processor comprises: acquiring historical environment data, historical operation data and corresponding historical fault information corresponding to the underground cable; cleaning historical environmental data and historical operating data; and training the cleaned historical environment data, historical operation data and corresponding historical fault information to obtain a fault early warning model. The training mode of the single model weight obtained by pre-training, which is realized when the computer program is executed by a processor, comprises the following steps: calculating the similarity between a plurality of single model prediction results and the historical fault information; obtaining a statistic value of the similarity, and obtaining a ratio corresponding to each single model prediction result according to the statistic value and the similarity; and carrying out normalization processing on the ratio to obtain the single model weight.
In one embodiment, the inputting the current environmental data and the current operating data into a plurality of pre-trained fault pre-warning models to obtain a single-model prediction result when the computer program is executed by the processor includes: acquiring the number of current fault early warning models capable of predicting faults; selecting a corresponding number of idle threads from a preset thread pool according to the number; and inputting the current environment data and the current operation data into a pre-trained fault early warning model in the idle threads to obtain a single-model prediction result, and operating one fault early warning model in each idle thread.
In one embodiment, the inputting of the current environmental data and the current operating data into the pre-trained fault early warning model to obtain the fault prediction result, when the computer program is executed by the processor, includes: acquiring current environment data and a current geographic position corresponding to current operation data; inquiring a fault early warning model corresponding to the current geographic position; and inputting the current environmental data and the current operation data into the inquired fault early warning model to obtain a fault prediction result.
In one embodiment, a computer program, when executed by a processor, queries a fault early warning model corresponding to a current geographic location, comprising: acquiring a power grid platform corresponding to the current geographic position; inputting current environmental data and current operating data into a prediction instruction, and sending the prediction instruction to a power grid platform, wherein the prediction instruction is used for indicating the power grid platform to inquire a latest fault early warning model locally stored by the power grid platform; when the computer program is executed by the processor, the current environment data and the current operation data are input into the inquired fault early warning model to obtain a fault prediction result, and the method comprises the following steps: and receiving a fault prediction result returned by the power grid platform, wherein the fault prediction result is obtained by inputting current environment data and current operation data into the inquired fault early warning model by the power grid platform.
In one embodiment, the computer program, when executed by a processor, implements generating early warning information based on location information of an underground cable, comprising: acquiring a city map corresponding to the position information of the underground cable; and positioning the position of the cable in the city map according to the position of the underground cable, and displaying the cable through the early warning mark to obtain early warning information.
In one embodiment, the current environmental data includes one or more of temperature data, water sensitivity data, ambient gas data, and displacement data, and the operational data includes, but is not limited to, partial discharge signals.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A multi-model-based underground cable fault early warning method is characterized by comprising the following steps:
acquiring current environment data and current operation data of the underground cable through an underground cable acquisition system;
inputting the current environmental data and the current operation data into a plurality of pre-trained fault early warning models to obtain single model prediction results;
obtaining a fault prediction result according to the single model prediction result and a single model weight obtained by pre-training;
judging whether the underground cable fails according to the failure prediction result;
when the underground cable is judged to have a fault, acquiring the position information of the underground cable, and generating early warning information according to the position information of the underground cable;
and sending the early warning information to a monitoring terminal.
2. The method of claim 1, wherein the fault pre-warning model is generated in a manner that includes:
acquiring historical environment data, historical operation data and corresponding historical fault information corresponding to the underground cable;
cleaning the historical environment data and the historical operation data;
training the cleaned historical environment data, historical operation data and corresponding historical fault information to obtain a fault early warning model;
the training mode of the single model weight obtained by pre-training comprises the following steps:
calculating the similarity between a plurality of single model prediction results and the historical fault information;
obtaining a statistic value of the similarity, and obtaining a ratio corresponding to each single model prediction result according to the statistic value and the similarity;
and carrying out normalization processing on the ratio to obtain the single model weight.
3. The method of claim 2, wherein inputting the current environmental data and the current operating data into a plurality of pre-trained fault pre-warning models to obtain a single-model prediction result comprises:
acquiring the number of current fault early warning models capable of predicting faults;
selecting a corresponding number of idle threads from a preset thread pool according to the number;
and inputting the current environment data and the current operation data into a pre-trained fault early warning model in the idle threads to obtain a single-model prediction result, and operating one fault early warning model in each idle thread.
4. The method according to any one of claims 1 to 3, wherein the inputting the current environmental data and the current operating data into a pre-trained fault early warning model to obtain a single-model prediction result comprises:
acquiring the current environment data and the current geographic position corresponding to the current operation data;
inquiring a fault early warning model corresponding to the current geographic position;
and inputting the current environmental data and the current operation data into the inquired fault early warning model to obtain a single model prediction result.
5. The method of claim 4, wherein querying the early warning model of the fault corresponding to the current geographic location comprises:
acquiring a power grid platform corresponding to the current geographic position;
inputting the current environmental data and the current operation data to generate a prediction instruction, and sending the prediction instruction to the power grid platform, wherein the prediction instruction is used for instructing the power grid platform to inquire the latest fault early warning model locally stored by the power grid platform;
the inputting the current environmental data and the current operation data into the queried fault early warning model to obtain a single model prediction result comprises the following steps:
and receiving a single model prediction result returned by the power grid platform, wherein the single model prediction result is obtained by inputting current environment data and the current operation data into the inquired fault early warning model by the power grid platform.
6. The method of any one of claims 1 to 3, wherein generating early warning information based on the location information of the underground cable comprises:
acquiring a city map corresponding to the position information of the underground cable;
and positioning the position of the cable in the city map according to the position of the underground cable, and displaying the cable through an early warning mark to obtain early warning information.
7. The method of any one of claims 1 to 3, wherein the current environmental data comprises one or more of temperature data, water sensitive data, ambient gas data, and displacement data, and wherein the operational data includes, but is not limited to, partial discharge signals.
8. An underground cable fault early warning device based on multiple models, characterized in that the device includes:
the acquisition module is used for acquiring current environmental data and current operation data of the underground cable through the underground cable acquisition system;
the single model prediction module is used for inputting the current environment data and the current operation data into a pre-trained fault early warning model to obtain a single model prediction result;
the comprehensive prediction module is used for obtaining a fault prediction result according to the single model prediction result and single model weight obtained by pre-training;
the judging module is used for judging whether the underground cable has faults according to the fault prediction result;
the early warning information generation module is used for acquiring the position information of the underground cable when the underground cable is judged to have a fault, and generating early warning information according to the position information of the underground cable;
and the sending module is used for sending the early warning information to the monitoring terminal.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020633.8A CN110868241B (en) | 2019-10-25 | 2019-10-25 | Underground cable fault early warning method and device based on multiple models |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020633.8A CN110868241B (en) | 2019-10-25 | 2019-10-25 | Underground cable fault early warning method and device based on multiple models |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110868241A true CN110868241A (en) | 2020-03-06 |
| CN110868241B CN110868241B (en) | 2022-05-13 |
Family
ID=69652910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911020633.8A Active CN110868241B (en) | 2019-10-25 | 2019-10-25 | Underground cable fault early warning method and device based on multiple models |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110868241B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426345A (en) * | 2020-03-24 | 2020-07-17 | 深圳供电局有限公司 | Distributed cable channel environment monitoring system, method and computer equipment |
| CN111555776A (en) * | 2020-04-28 | 2020-08-18 | 国电南瑞科技股份有限公司 | Fusion sensing and joint diagnosis method, system and device for power transmission line |
| CN112215197A (en) * | 2020-10-27 | 2021-01-12 | 华能国际电力股份有限公司上海石洞口第一电厂 | Underground cable fault early warning method and system based on artificial intelligence |
| CN112363476A (en) * | 2020-11-16 | 2021-02-12 | 桂林理工大学 | Underground drainage monitoring system and method based on positioning technology |
| CN112947364A (en) * | 2021-01-29 | 2021-06-11 | 上海工程技术大学 | System and method for early warning of equipment faults of power distribution station based on big data |
| CN113884130A (en) * | 2021-09-16 | 2022-01-04 | 广州番禺电缆集团有限公司 | Cable aging prediction method, device and equipment based on cable well environment monitoring |
| CN113960408A (en) * | 2021-09-14 | 2022-01-21 | 广州番禺电缆集团有限公司 | Cable fault prediction method, device and equipment for optical fiber temperature measurement and storage medium |
| CN115019490A (en) * | 2022-05-28 | 2022-09-06 | 浙江和朴实业有限公司 | Intelligent analysis safety early warning method and device, electronic equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355299A (en) * | 2011-06-21 | 2012-02-15 | 舟山电力局 | Analysis method of seabed photoelectrical compound cable fault type |
| CN103033362A (en) * | 2012-12-31 | 2013-04-10 | 湖南大学 | Gear fault diagnosis method based on improving multivariable predictive models |
| CN105527645A (en) * | 2014-09-30 | 2016-04-27 | 国家电网公司 | Power cable damage prevention positioning method and device |
| US20170310562A1 (en) * | 2016-04-25 | 2017-10-26 | Cisco Technology, Inc. | Network architecture for predictive services management in cable network environments |
| CN108537394A (en) * | 2017-03-01 | 2018-09-14 | 全球能源互联网研究院 | A kind of intelligent grid actual time safety method for early warning and device |
| CN109324263A (en) * | 2018-10-24 | 2019-02-12 | 国网江苏省电力有限公司徐州供电分公司 | A kind of distribution network cable initial failure positioning system and its control method based on transient disturbance |
| CN109506704A (en) * | 2018-10-10 | 2019-03-22 | 国网河南省电力公司开封供电公司 | Cable detection and method for early warning and device |
-
2019
- 2019-10-25 CN CN201911020633.8A patent/CN110868241B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355299A (en) * | 2011-06-21 | 2012-02-15 | 舟山电力局 | Analysis method of seabed photoelectrical compound cable fault type |
| CN103033362A (en) * | 2012-12-31 | 2013-04-10 | 湖南大学 | Gear fault diagnosis method based on improving multivariable predictive models |
| CN105527645A (en) * | 2014-09-30 | 2016-04-27 | 国家电网公司 | Power cable damage prevention positioning method and device |
| US20170310562A1 (en) * | 2016-04-25 | 2017-10-26 | Cisco Technology, Inc. | Network architecture for predictive services management in cable network environments |
| CN108537394A (en) * | 2017-03-01 | 2018-09-14 | 全球能源互联网研究院 | A kind of intelligent grid actual time safety method for early warning and device |
| CN109506704A (en) * | 2018-10-10 | 2019-03-22 | 国网河南省电力公司开封供电公司 | Cable detection and method for early warning and device |
| CN109324263A (en) * | 2018-10-24 | 2019-02-12 | 国网江苏省电力有限公司徐州供电分公司 | A kind of distribution network cable initial failure positioning system and its control method based on transient disturbance |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426345A (en) * | 2020-03-24 | 2020-07-17 | 深圳供电局有限公司 | Distributed cable channel environment monitoring system, method and computer equipment |
| CN111555776A (en) * | 2020-04-28 | 2020-08-18 | 国电南瑞科技股份有限公司 | Fusion sensing and joint diagnosis method, system and device for power transmission line |
| CN112215197A (en) * | 2020-10-27 | 2021-01-12 | 华能国际电力股份有限公司上海石洞口第一电厂 | Underground cable fault early warning method and system based on artificial intelligence |
| CN112363476A (en) * | 2020-11-16 | 2021-02-12 | 桂林理工大学 | Underground drainage monitoring system and method based on positioning technology |
| CN112947364A (en) * | 2021-01-29 | 2021-06-11 | 上海工程技术大学 | System and method for early warning of equipment faults of power distribution station based on big data |
| CN112947364B (en) * | 2021-01-29 | 2022-10-14 | 上海工程技术大学 | System and method for early warning of equipment faults of power distribution station based on big data |
| CN113960408A (en) * | 2021-09-14 | 2022-01-21 | 广州番禺电缆集团有限公司 | Cable fault prediction method, device and equipment for optical fiber temperature measurement and storage medium |
| CN113884130A (en) * | 2021-09-16 | 2022-01-04 | 广州番禺电缆集团有限公司 | Cable aging prediction method, device and equipment based on cable well environment monitoring |
| CN115019490A (en) * | 2022-05-28 | 2022-09-06 | 浙江和朴实业有限公司 | Intelligent analysis safety early warning method and device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110868241B (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110868241B (en) | Underground cable fault early warning method and device based on multiple models | |
| CN110875851B (en) | Underground cable fault early warning method and device | |
| CN110798245B (en) | Underground cable fault early warning method and device based on single model | |
| CN111199346B (en) | Utility tunnel supervision method, device, computer equipment and storage medium | |
| CN110866634A (en) | Underground cable fault early warning method and device based on model selection | |
| CN110345602B (en) | Air conditioner maintenance method and device, computer equipment and storage medium | |
| CN110391840B (en) | Method and system for judging abnormality of telemetry parameters of sun synchronous orbit satellite | |
| CN110763952A (en) | Underground cable fault monitoring method and device | |
| CN110837956A (en) | Underground cable inspection task distribution method and device | |
| CN110956288A (en) | Underground cable fault early warning method and device based on three-dimensional modeling | |
| JP2018531458A (en) | Automatic discovery method, automatic discovery apparatus, storage medium and equipment for gas station POI | |
| JP2018531458A6 (en) | Automatic discovery method, automatic discovery apparatus, storage medium and equipment for gas station POI | |
| CN114514141A (en) | Charging station monitoring method and device | |
| CN110850233A (en) | Cable fault positioning method and device | |
| CN110825923A (en) | Underground cable fault repairing method and device based on single model | |
| CN114076873A (en) | Cable fault analysis and prediction method and device | |
| CN112884199A (en) | Method and device for predicting faults of hydropower station equipment, computer equipment and storage medium | |
| CN111027116A (en) | Building operation and maintenance management method and device, computer equipment and storage medium | |
| CN110866682B (en) | Underground cable early warning method and device based on historical data | |
| CN116187552A (en) | Abnormality detection method, computing device, and computer storage medium | |
| CN113156243A (en) | Fault prediction method and prediction system | |
| CN110175424B (en) | Pipeline design method and device of air conditioning unit, computer equipment and storage medium | |
| CN110264055B (en) | Component hazard assessment method, device, equipment and computer-readable storage medium | |
| CN115421950A (en) | Automatic system operation and maintenance management method and system based on machine learning | |
| CN115035475A (en) | Water supply pipeline real-time monitoring method and device, electronic equipment and medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240109 Address after: 411102 No.16, Xingfu Road, Bantang Street, High tech Zone, Xiangtan City, Hunan Province Patentee after: HUNAN GUOAO POWER EQUIPMENT Co.,Ltd. Address before: 411101 33 buildings in two phase of new village, Furong Road power plant, yyue District, Xiangtan, Hunan Patentee before: Yuan Maoyin |
|
| TR01 | Transfer of patent right |