CN110596486B - Intelligent early warning operation and maintenance method and system for charging pile - Google Patents
Intelligent early warning operation and maintenance method and system for charging pile Download PDFInfo
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- CN110596486B CN110596486B CN201910788387.4A CN201910788387A CN110596486B CN 110596486 B CN110596486 B CN 110596486B CN 201910788387 A CN201910788387 A CN 201910788387A CN 110596486 B CN110596486 B CN 110596486B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention provides a method for intelligent early warning operation and maintenance of a charging pile, which comprises the following steps: acquiring information collected by each fault alarm detection device in a charging pile maintenance period, storing the information in a platform end in a log mode, and setting an alarm threshold value; extracting log information of a target charging pile based on the charging pile log information of the platform end; determining whether the log information of the target charging pile is greater than or equal to the alarm threshold value; responding to the fact that the log information of the target charging pile is larger than or equal to the alarm threshold value, and determining that the log information of the target charging pile is fault alarm information; responding to the fact that the log information of the target charging pile is smaller than the alarm threshold value, and extracting abnormal break variables in the log information of the target charging pile; the method and the system can reduce the operation and maintenance workload, improve the operation and maintenance management efficiency, and reduce the number of personnel in the operation and maintenance management team and the operation cost of the company.
Description
Technical Field
The invention belongs to the technical field of charging pile data analysis and processing, and particularly relates to a charging pile intelligent early warning operation and maintenance method and system.
Background
The transportation department develops green trip action decision deployment, and in order to further improve the green trip level, new energy vehicles and charging infrastructure construction will continue to be vigorously developed. The subsidy of the charging infrastructure is increased, and the fund of subsidy purchase of the new energy automobile is gradually shifted to the construction and operation links of the charging infrastructure, so that higher requirements are provided for charging infrastructure operators, a charging operation safety production management system needs to be established, charging operation and maintenance safety guarantee is developed, safety protection measures in the charging process are established, and the like.
Charging pile state change, fault monitoring, fault reporting and fault positioning in the operation process become the key focus of charging pile operators, but how to quickly and effectively maintain the faults of the charging pile, especially timely eliminate the hidden fault danger, and increase the charging pile safe operation guarantee is still a technical difficulty.
At present, the fixed maintenance period is generally established according to empirical values in the determination of operation and maintenance or inspection period, but the method is not scientific enough and has poor adaptability. Because of charging the electric pile distribution condition different, every frequency of utilization that charges is different, and the fault conditions are different etc. only rely on experience to formulate to patrol and examine the operation and maintenance cycle inaccurate. The low-utilization ratio pile group patrols and examines the maintenance cycle and short excessively, can cause the wasting of resources, and if patrol and examine the maintenance cycle overlength, the high-utilization ratio pile group leads to the trouble owing to dredging the maintenance easily, influences and fills electric pile normal use, reduces charging customer satisfaction etc..
In addition, the traditional charging pile generally informs operation and maintenance personnel to overhaul after fault alarming, and the post-accident processing has no early warning function of faults or potential safety hazards, and does not have the functions of real-time monitoring, overhaul reminding and the like on the faults and the electrical safety of the charging pile.
Disclosure of Invention
The invention mainly solves the technical problems of how to quickly and effectively maintain the fault of the charging pile, particularly timely eliminate the hidden fault danger and increase the safe operation guarantee of the charging pile.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for intelligent early warning operation and maintenance of a charging pile comprises the following steps:
acquiring information collected by each fault alarm detection device in a charging pile maintenance period, storing the information in a platform end in a log mode, and setting an alarm threshold value;
extracting log information of a target charging pile based on the charging pile log information of the platform end; determining whether the log information of the target charging pile is greater than or equal to the alarm threshold value;
responding to the fact that the log information of the target charging pile is larger than or equal to the alarm threshold value, and determining that the log information of the target charging pile is fault alarm information; and the number of the first and second groups,
responding to the fact that the log information of the target charging pile is smaller than the alarm threshold value, and extracting abnormal break variables in the log information of the target charging pile; determining fault early warning information of the target charging pile based on the abnormal break variable;
generating target data based on the fault alarm information and the fault early warning information; and
and generating a fault judgment result based on the target data, wherein the fault judgment result comprises at least one of fault alarm, fault early warning, overhaul period arrival and normal operation.
Preferably, the method further comprises:
setting fault types to be A, B, C, … … and N respectively based on the target data and judgment requirements of corresponding thresholds, wherein the corresponding thresholds are A1, B1, C1, … … and N1, the fault early warning information accumulation times are A2, B2, C2, … … and N2, and the fault early warning information accumulation times are a, B, C, … … and N;
and acquiring target data of the target charging pile and comparing the target data with the set value.
Preferably, the method further comprises:
responding to the condition that one fault exceeds the corresponding threshold value, namely one of A > A1, B > B1, C > C1, … … and N > N1 is established, and determining alarm information;
and combining the fault point corresponding to the fault type and the required maintenance measures, and sending the fault point and the required maintenance measures to the operation and maintenance personnel terminal together with the alarm information.
Preferably, the method comprises:
in response to the fact that only a single type of fault early warning information occurs, when the frequency of the corresponding fault early warning information exceeds a set threshold value, namely one of A2> a, B2> B, C2> C, … … and N2> N is established, the corresponding fault early warning information is judged to be fault early warning information;
and sending the hidden danger fault points and the maintenance measures to be taken in combination with the fault types and the corresponding hidden danger fault points and the maintenance measures to be taken together with the early warning information to an operation and maintenance personnel terminal.
Preferably, the method comprises:
in response to occurrence of multiple types of fault pre-warning information:
when the above formula is established, judging as a fault early warning; wherein X represents the tolerance degree of the equipment to the fault;
and sending the hidden danger fault points and the maintenance measures to be taken in combination with the fault types and the corresponding hidden danger fault points and the maintenance measures to be taken together with the early warning information to an operation and maintenance personnel terminal.
Preferably, the method comprises:
and responding to the judgment that the fault alarm and the fault early warning information do not reach the threshold value, calculating whether the information acquisition accumulated time T reaches a preset overhaul period T0, and when the T is more than or equal to T0, sending the information of the overhaul period to be inspected to an operation and maintenance personnel terminal.
Preferably, the method further comprises:
responding to the judgment result, sending the judgment result to an operation and maintenance personnel terminal, and continuously acquiring a working log of the target charging pile;
resetting the maintenance period of the target charging pile after the maintenance is finished and carrying out a new round of information acquisition, processing and judgment;
and if the maintenance is not carried out, continuously sending a judgment result to the operation and maintenance personnel terminal.
Preferably, the method further comprises:
the maintenance period can be updated and set according to the maintenance history of the target charging pile, and the reset period is
Wherein, the maintenance period adjustment coefficient
Carrying out self-adaptive setting according to parameters in each overhaul period of the target charging pile:
An operation and maintenance system of charging pile intelligent early warning: the system comprises an information acquisition module, an information extraction module and an information processing and judging module;
the information acquisition module comprises a plurality of fault detection modules for the collection target fills electric pile in the operation process, all trouble or the collection of safety relevant warning or early warning information, and with relevant information with log form upload platform end save, include wherein:
the system comprises an acquisition unit, a monitoring unit and a monitoring unit, wherein the acquisition unit comprises a plurality of fault detection acquisition modules or devices of different types and is used for acquiring all fault or safety protection related alarm or early warning information of a target charging pile;
the judging unit is used for responding to the fault protection related information collected by the collecting unit, preprocessing the fault protection related information, analyzing and judging the fault type and the fault severity level to which the fault belongs, and classifying and judging faults of different types and different severity levels;
the uploading unit responds to the fault related information judged by the preprocessing in the judging unit; recording the data according to different priority levels to form logs, and uploading the logs to a platform end for storage;
the information extraction processing module is used for extracting and preprocessing the fault alarm or early warning information collected in the working log to obtain target data, wherein the target data comprises the fault alarm or early warning information;
the extraction unit is used for acquiring a working log from last maintenance to present of the target charging pile and extracting information related to fault protection;
a processing unit that responds to the fault protection-related information extracted by the extraction unit; separating the fault information according to different fault types and fault severity levels to form different fault information and form target data;
the information processing and judging module is used for comparing the preprocessed target data with corresponding criteria to obtain a judgment result, and sending the judgment result and corresponding measures to the operation and maintenance personnel terminal, and comprises the following steps:
the criterion unit is used for calculating a predicted value of the obtained target data according to a criterion, comparing and judging the predicted value with a set threshold value to obtain a judgment result, and further, the fault judgment result comprises at least one of fault alarm, fault early warning, overhaul period arrival and normal operation;
the fault diagnosis unit is used for obtaining information such as possible fault points, fault solving measures, required spare parts and tools and the like corresponding to the fault according to the fault type;
and the early warning unit responds to the judgment result, generates corresponding warning information and sends the warning information and relevant information such as corresponding maintenance measures and the like to the operation and maintenance personnel terminal.
Preferably, the system further comprises: the second early warning unit is used for responding to the generation of the first early warning information and then continuously acquiring a working log of the target charging pile;
judging whether the charging pile is maintained or not based on a working log acquired after the first early warning information is generated;
resetting the time point of the latest maintenance in response to the completion of the maintenance of the charging pile;
in response to the uncompleted maintenance, the early warning information is retransmitted to the operation and maintenance personnel terminal according to a set time interval;
the system also comprises a maintenance period setting module, which is used for responding to the maintenance history of the target charging pile to perform self-adaptive updating setting and resetting the maintenance period.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides the type of the fault, the position which is possible to have the fault, the required spare parts and tools for operation and maintenance personnel, avoids the operation and maintenance management from excessively depending on core personnel and experience of fault treatment, and reduces the problems of incomplete fault problem elimination, long maintenance time, hidden danger and the like caused by less operation and maintenance management experience;
2. the early warning system can greatly improve the working efficiency of operation and maintenance managers, can pre-judge the hidden danger problem existing in the early warning charging pile in advance, eliminate the hidden danger of the fault in advance, avoid the loss of manpower and material resources caused after the fault occurs, improve the safety and reliability of the operation of the charging pile and improve the customer satisfaction degree of the charging pile;
3. the method and the system can reduce the operation and maintenance workload, improve the operation and maintenance management efficiency, and reduce the number of personnel in the operation and maintenance management team and the operation cost of the company.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a block diagram of a system architecture according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of an embodiment of the present invention;
FIG. 3 is a system diagram according to an embodiment of 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.
Example 1:
s10: collecting alarm or early warning information related to failure or safety;
the method comprises the steps of acquiring information collected by each fault alarm detection device in the charging pile overhaul period in real time, such as A1, A2 and A3 in figure 1, and uploading the information to a platform end in a log mode for storage.
The detection devices are generally a current sensor, a voltage transformer, a temperature sensor, a fault arc current detection device, a residual current detection device, an insulation detection device and the like, and detected information comprises a current value, a voltage value, a temperature value, a fault arc current value, a residual current value, an insulation conductance value and the like;
s20: the method comprises the steps of extracting log information of a target charging pile in real time, dividing fault alarm information into two types, determining the fault alarm information if one type of the fault alarm information exceeds a set threshold value, determining the fault alarm information if the other type of the fault alarm information is an abnormal mutation quantity smaller than the alarm threshold value, determining the fault alarm information if the other type of the fault alarm information does not reach the fault characteristic quantity of the alarm threshold value, preprocessing the information data, and obtaining target data.
General fault alarm information is a current overcurrent value, a voltage overvoltage value, a high-temperature alarm value, a residual current alarm value, a fault arc current alarm value and an insulation conductance alarm value; yet another type is null, where one of the low or high signals is initially set to a default value and an alarm is raised as soon as either the low or high signal is detected.
However, abnormal sudden change values under alarm threshold values can appear in the information, the values can not cause fault alarm, the fact that some potential safety hazards certainly exist in the charging pile is represented, the sudden change times of the parameters represent the severity of the potential safety hazards of certain parts of the charging pile, the fault danger hidden in the charging pile is deduced by monitoring the abnormal sudden change quantities of the parameters, early warning maintenance is further carried out, and the fault hidden is eliminated in the non-explosion stage. For example, the threshold value of the residual current is set to be 30m A, but when the residual current mutation value is 28 m A, a fault alarm cannot be triggered, certain potential safety hazards exist in certain parts certainly, abnormal values are recorded and analyzed, early warning information can be sent out through accumulated times, operation and maintenance personnel can overhaul in time, and the charging pile can be operated safely and reliably.
S30: and comparing the extracted target data with a corresponding set threshold value to obtain a fault judgment result. In the step, four results can be obtained, namely fault alarm, fault early warning, arrival of maintenance period and normal operation, and possible fault points and required maintenance spare parts can be predicted while the judgment result is sent.
In the step, a set threshold value is a fault alarm threshold value of each fault type, once the threshold value is exceeded, fault alarm information is sent immediately, after the fault alarm information is sent, a charging pile or an automatic contactor is switched off, the charging pile stops charging immediately, or a customer is reminded to carry out related operations, a platform end directly sends the fault alarm information to an operation and maintenance personnel terminal, the customer does not need to make a customer service call to report and repair by himself, and a fault point related to the fault and a required maintenance measure are sent to the operation and maintenance personnel, so that the operation and maintenance personnel can carry out field maintenance in time conveniently. The other threshold value is set as a fault early warning threshold value, once the threshold value is exceeded, the charging pile can be used normally, fault reminding information can not be sent out, the platform end can directly send the fault early warning information to an operation and maintenance personnel terminal, a fault hidden danger point, maintenance measures and spare parts which need to be taken are sent to the operation and maintenance personnel together, and the operation and maintenance personnel can conveniently conduct fault hidden danger troubleshooting on the charging pile.
When the operation is normal in certain maintenance cycle of target charging pile, the platform end can judge that the maintenance cycle arrives according to the extraction of information, sends relevant information to operation and maintenance personnel terminal, in time patrols and examines.
As a preferred embodiment, the present embodiment provides a specific threshold value determination method:
setting fault types as A, B, C, … … and N, wherein corresponding fault thresholds are A1, B1, C1, … … and N1, the accumulated times of early warning information of each type of fault are A2, B2, C2, … … and N2, and the threshold of the accumulated times of the early warning information of the fault is set as a, B, C, … … and N
B1: when one fault exceeds a corresponding fault threshold value, such as one of A > A1, B > B1, C > C1, … … and N > N1, immediately giving a fault alarm, corresponding to a possible fault point and a maintenance measure to be taken according to a prestored fault type, and sending the fault alarm and an alarm message to an operation and maintenance personnel terminal;
b2: when only single type of fault early warning information occurs, if the frequency of the corresponding fault early warning information exceeds a set threshold value, such as one of A2 a, B2B, C2C, … … and N2N, immediately performing fault early warning, corresponding to a hidden danger fault point and a maintenance measure to be taken according to a prestored fault type, and sending the hidden danger fault point and the maintenance measure to be taken together with the early warning information to an operation and maintenance personnel terminal;
b3: when a plurality of types of fault warning information occur,
wherein X represents the tolerance of the charging device to a fault. In some embodiments, X may take on a value of 80%. When the above formula is established, immediately performing fault early warning, corresponding to the hidden trouble fault points and the maintenance measures to be taken according to the proportion of each fault type, and sending the hidden trouble fault points and the maintenance measures to the operation and maintenance personnel terminal together with the early warning information. In some embodiments, X may also be 75%, 90%, etc., without limitation. In some embodiments, X may be preset by an operation and maintenance person or system.
B4: when the fault alarm and the fault early warning information do not reach the threshold value, whether the information acquisition accumulated time T reaches a preset overhaul period T0 is calculated, and when T is larger than or equal to T0, the overhaul period is up, and the information from the overhaul period to the inspection to be inspected is sent to an operation and maintenance personnel terminal.
As a preferred embodiment, in order to ensure that the relevant operation and maintenance personnel receive the alarm or early warning information in time, the embodiment further includes the following steps:
after a judgment result (alarm, early warning or maintenance period is up) is sent to the operation and maintenance personnel terminal, a working log of the target charging pile is continuously obtained, after the operation and maintenance personnel complete maintenance, the maintenance period is reset and a new round of information acquisition, processing and judgment is started, and if the operation and maintenance personnel do not perform maintenance, judgment result information is continuously sent to the operation and maintenance personnel terminal.
As a preferred embodiment, this embodiment provides a specific method for setting a maintenance cycle, which includes:
the maintenance period can be updated and set according to the maintenance history of the target charging pile, and the reset period
The overhaul period adjustment coefficient xn is set in a self-adaptive mode according to parameters in each overhaul period of the target charging pile,
the value of xn is inversely proportional to the number of years of operation Ye of the target charging pile, the charging amount Qu, the number of times of charging Ti, and the severity of failure Fa.
The charging times of the charging piles are more, the charging amount is larger, the aging of internal devices of the charging piles is more serious, the fault occurrence probability is larger, the number of operating years of the charging piles is more, the closer scrapping is meant, the maintenance is more frequent, the severity of historical faults is larger, the hidden danger of each part of the charging piles is larger, and the maintenance frequency is larger.
S40: and generating alarm or early warning information according to the target information data processing result, sending the alarm or early warning information and corresponding maintenance measures to be taken to an operation and maintenance personnel terminal, and carrying out maintenance operation on the corresponding charging pile by the operation and maintenance personnel according to the prompt.
Example 2:
as shown in fig. 3, the present embodiment discloses a system for intelligent early warning operation and maintenance of a charging pile corresponding to the method in fig. 2, which includes an information acquisition module S1, an information extraction processing module S2, and an information processing and judgment module S3.
The information acquisition module S1 consists of a plurality of fault detection modules and is used for acquiring all fault or safety related alarm or early warning information during the operation process of the target charging pile and uploading the related information to the platform end in a log form for storage;
the information collecting module S1 includes:
acquisition unit S11: the system comprises a plurality of fault detection acquisition modules or devices of different types, and is used for acquiring all fault or safety protection related alarm or early warning information of a target charging pile;
determination unit S12: the fault protection device is used for preprocessing the collected fault protection related information, analyzing and judging the fault type and the fault severity level to which the fault protection related information belongs, and classifying and judging faults of different types and different severity levels;
upload unit S13: and recording the relevant information of the faults judged by preprocessing according to different priority levels to form a log, and uploading the log to a platform end for storage.
The information extraction processing module S2: the system comprises a working log, a fault alarm or early warning information acquisition module, a fault detection module, a fault analysis module and a fault analysis module, wherein the working log is used for acquiring fault alarm or early warning information collected in the working log;
the information extraction processing module S2 includes:
extraction unit S21: the system is used for acquiring a working log from last maintenance to present of a target charging pile and extracting information related to fault protection;
the processing unit S22: and separating the extracted fault protection related information according to different fault types and fault severity levels to form different fault information and form target data.
The information processing determination module S3: and the system is used for comparing the preprocessed target data with corresponding criteria to obtain a judgment result and sending the judgment result and corresponding measures to the operation and maintenance personnel terminal.
The information processing determination module S3 includes:
criterion element S31: calculating a predicted value of the obtained target data according to a criterion, comparing and judging the predicted value with a set threshold value to obtain a judgment result, and further, judging the fault by at least one of fault alarm, fault early warning, overhaul period arrival and normal operation;
failure diagnosis unit S32: the fault diagnosis system is used for obtaining information such as possible fault points, fault solving measures, required spare parts and tools and the like corresponding to the fault according to the fault type;
early warning unit S33: and the warning device is used for generating corresponding warning information according to the judgment result and sending the warning information and relevant information such as corresponding maintenance measures to the operation and maintenance personnel terminal.
Further, the system also comprises a second early warning unit;
the second early warning unit is used for continuously acquiring a work log of the target charging pile after the first early warning information is generated, judging whether the charging pile is maintained or not according to the work log acquired after the first early warning information is generated, and resetting the time point of the latest maintenance if the charging pile is maintained; and otherwise, the early warning information is retransmitted to the operation and maintenance personnel terminal according to the set time interval.
And the system further comprises an overhaul period setting module which is used for carrying out self-adaptive updating setting according to the overhaul history of the target charging pile and resetting the overhaul period.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The intelligent early warning operation and maintenance method for the charging pile is characterized by comprising the following steps:
acquiring information collected by each fault alarm detection device in a charging pile maintenance period, storing the information in a platform end in a log mode, and setting an alarm threshold value;
extracting log information of a target charging pile based on the charging pile log information of the platform end; determining whether the log information of the target charging pile is greater than or equal to the alarm threshold value;
responding to the fact that the log information of the target charging pile is larger than or equal to the alarm threshold value, and determining that the log information of the target charging pile is fault alarm information; and the number of the first and second groups,
responding to the fact that the log information of the target charging pile is smaller than the alarm threshold value, and extracting abnormal break variables in the log information of the target charging pile; determining fault early warning information of the target charging pile based on the abnormal break variable;
generating target data based on the fault alarm information and the fault early warning information; and
generating a fault judgment result based on the target data, wherein the fault judgment result comprises at least one of fault alarm, fault early warning, overhaul period arrival and normal operation;
setting fault types to be A, B, C, … … and N respectively based on the target data and judgment requirements of corresponding thresholds, wherein the corresponding thresholds are A1, B1, C1, … … and N1, the fault early warning information accumulation times are A2, B2, C2, … … and N2, and the fault early warning information accumulation times are a, B, C, … … and N;
acquiring target data of the target charging pile and comparing the target data with the alarm threshold value;
responding to one fault exceeding the alarm threshold value, namely one of A > A1, B > B1, C > C1, … … and N > N1 is established, and determining alarm information;
combining the fault point corresponding to the fault type and the required maintenance measures, and sending the fault point and the required maintenance measures to an operation and maintenance personnel terminal together;
in response to the fact that only a single type of fault early warning information occurs, when the frequency of the corresponding fault early warning information exceeds a set threshold value, namely one of A2> a, B2> B, C2> C, … … and N2> N is established, the corresponding fault early warning information is judged to be fault early warning information;
combining the hidden trouble fault point corresponding to the fault type and the maintenance measures to be taken, and sending the hidden trouble fault point and the maintenance measures to the operation and maintenance personnel terminal together with the early warning information;
in response to occurrence of multiple types of fault pre-warning information:
when the above formula is established, judging as a fault early warning; wherein X represents the tolerance degree of the equipment to the fault;
and sending the hidden trouble fault point and the maintenance measures to be taken in combination with the fault type corresponding to the hidden trouble fault point and the early warning information to an operation and maintenance personnel terminal.
2. The charging pile intelligent early warning operation and maintenance method according to claim 1, wherein the method comprises the following steps:
and responding to the judgment that the fault alarm and the fault early warning information do not reach the threshold value, calculating whether the information acquisition accumulated time T reaches a preset overhaul period T0, and when the T is more than or equal to T0, sending the information of the overhaul period to be inspected to an operation and maintenance personnel terminal.
3. The method for intelligent early warning operation and maintenance of the charging pile according to claim 2, further comprising:
responding to the judgment result, sending the judgment result to an operation and maintenance personnel terminal, and continuously acquiring a working log of the target charging pile;
resetting the maintenance period of the target charging pile after the maintenance is finished and carrying out a new round of information acquisition, processing and judgment;
and if the maintenance is not carried out, continuously sending a judgment result to the operation and maintenance personnel terminal.
4. The method of claim 3, further comprising:
the maintenance period can be updated and set according to the maintenance history of the target charging pile, and the reset period is
Wherein, the maintenance period adjusts the coefficient xnCarrying out self-adaptive setting according to parameters in each overhaul period of the target charging pile:
xn＝Co1Ye+Co2Qu+Co3Ti+Co4Fa
xnthe value of (c) is proportional to the number of years of operation Ye of the target charging pile, the charging amount Qu, the charging number Ti, and the severity of failure Fa.
5. The utility model provides an operation and maintenance system of stake intelligent early warning which characterized in that: the system comprises an information acquisition module, an information extraction module and an information processing and judging module;
the information acquisition module comprises a plurality of fault detection modules for the collection target fills electric pile in the operation process, all trouble or the collection of safety relevant warning or early warning information, and with relevant information with log form upload platform end save, include wherein:
the system comprises an acquisition unit, a monitoring unit and a monitoring unit, wherein the acquisition unit comprises a plurality of fault detection acquisition modules or devices of different types and is used for acquiring all fault or safety protection related alarm or early warning information of a target charging pile;
the judging unit is used for responding to the fault protection related information collected by the collecting unit, preprocessing the fault protection related information, analyzing and judging the fault type and the fault severity level to which the fault belongs, and classifying and judging faults of different types and different severity levels;
the uploading unit responds to the fault related information judged by the preprocessing in the judging unit; recording the data according to different priority levels to form logs, and uploading the logs to a platform end for storage;
the information extraction processing module is used for extracting and preprocessing the fault alarm or early warning information collected in the working log to obtain target data, wherein the target data comprises the fault alarm or early warning information;
the extraction unit is used for acquiring a working log from last maintenance to present of the target charging pile and extracting information related to fault protection;
a processing unit that responds to the fault protection-related information extracted by the extraction unit; separating the fault information according to different fault types and fault severity levels to form different fault information and form target data;
the information processing and judging module is used for comparing the preprocessed target data with corresponding criteria to obtain a judgment result, and sending the judgment result and corresponding measures to the operation and maintenance personnel terminal, and comprises the following steps:
the criterion unit is used for calculating a predicted value of the obtained target data according to a criterion, comparing and judging the predicted value with a set threshold value to obtain a judgment result, and further, the judgment result comprises at least one of fault alarm, fault early warning, overhaul period arrival and normal operation;
the fault diagnosis unit is used for obtaining a possible fault point corresponding to the fault, a fault solving measure, required spare parts and tool information according to the fault type;
and the early warning unit responds to the judgment result, generates corresponding warning information and sends the warning information and the corresponding maintenance measure related information to the operation and maintenance personnel terminal.
6. The operation and maintenance system for intelligent early warning of charging piles according to claim 5, characterized in that: the system further comprises: the second early warning unit is used for responding to the generation of the first early warning information and then continuously acquiring a working log of the target charging pile;
judging whether the charging pile is maintained or not based on a working log acquired after the first early warning information is generated;
resetting the time point of the latest maintenance in response to the completion of the maintenance of the charging pile;
in response to the uncompleted maintenance, the early warning information is retransmitted to the operation and maintenance personnel terminal according to a set time interval;
the system also comprises a maintenance period setting module, which is used for responding to the maintenance history of the target charging pile to perform self-adaptive updating setting and resetting the maintenance period.
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