CN107798395A - A kind of power grid accident signal automatic diagnosis method and system - Google Patents
A kind of power grid accident signal automatic diagnosis method and system Download PDFInfo
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Abstract
The present invention relates to power system dispatching of power netwoks running technology field, it is related to a kind of power grid accident signal automatic diagnosis method and system.Comprise the following steps：S1.SOE real time information samplings, gather SOE message informations in real time from EMS system；S2. fault type experts database is established；S3. accident diagnosis is carried out, the every group of SOE message information filtered out is matched with the Signal Matching rule in fault type experts database；S4. Real-time Load and loss number of users are acquired, by the data correlation with marketing system, obtain causality loss number of users, responsible consumer data message；S5. accident event grade judgement is carried out；S6. accident release quickly is carried out to accident diagnosis result, for accident diagnosis result, automatically generates power grid accident short message.The present invention, which carries, realizes warning information quick diagnosis and issue, improves the treatment effeciency of event of failure, effectively improves electric network failure diagnosis and fault message efficiency for issuing, mitigates dispatcher's operating pressure.
Description
Technical field
The present invention relates to power system dispatching of power netwoks running technology field, more particularly, to a kind of power grid accident signal
Automatic diagnosis method and system.
Background technology
EMS system（EMS）On SOE signals（That is sequence of events recording）It is real-time primarily with regard to power network
The sequence of events journal of remote signalling, remote measurement or protection act.Electric network composition is increasingly sophisticated, when accident occurs for power network, especially
In the case that it is multiple accident, dispatcher will carry out Analysis and Screening to ten hundreds of accident alarm signals, quickly judge
Faulty equipment, analyzing influence scope simultaneously draft roadmap.In addition, to formulate optimal accident treatment strategy, dispatcher needs to the greatest extent
The early responsible consumer information for understanding loss, the grade of accident event and its evolution situation over time, on the other hand, scheduling
Also need to quick and precisely issue accident information, so that relevant departments understand accident conditions, carry out accident emergency work in time.
Prior art realizes the analysis to power grid accident signal, determines electric network fault property.However, dispatcher still needs
Enquiry of historical data is wanted, understands the responsible consumer information of loss, the grade of accident event and its evolution over time as early as possible
Situation, draft optimal telegram in reply scheme；On the other hand, scheduling also needs to collect correlation circumstance, quick and precisely issues accident information,
So that relevant departments of office understand accident conditions, carry out accident emergency work in time.Above-mentioned work such as only relies on EMS warning information point
The Traditional Man means such as analysis and related data inquiry, often attend to one thing and lose sight of another in ageing and accuracy, or even mutually dry
Disturb, it has also become influence the conspicuous contradiction of accident treatment accuracy and rapidity.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of power grid accident signal automatic diagnosis method and
System, electric network failure diagnosis and fault message efficiency for issuing are effectively improved, mitigate dispatcher's operating pressure.
To solve the above problems, technical scheme provided by the invention is：A kind of power grid accident signal automatic diagnosis method, its
In, comprise the following steps：
S1. SOE real time information samplings, the collection SOE message informations, and being grouped in real time from EMS system；
S2. fault type experts database is established, the accident pattern of different electrical equipment protection acts is divided, for each
Kind accident pattern, establish Signal Matching rule；
S3. accident diagnosis is carried out, the Signal Matching in the every group of SOE message information filtered out and fault type experts database is advised
Then matched, if the match is successful, then excluded for default special circumstances；
S4. Real-time Load and loss number of users are acquired, gather EMS system distribution network line telemetering of current number in real time
According to, it is accurate to calculate decompression bus or transformer station's load, by the data correlation with marketing system, causality loss is obtained in real time and is used
Amount, responsible consumer data message；
S5. accident event grade judgement is carried out, accident is classified according to different classes of, to different classes of accident event
Carry out grade judgement；Enter from six load, user, decompression bus number, decompression number of users, responsible consumer and accumulated time dimensions
Row accident event grade composite rating and dynamical evolution；
S6. accident release quickly is carried out to accident diagnosis result, accident short message intelligent create-rule is established, for accident diagnosis
As a result, according to the message template pre-established, power grid accident impact analysis result is loaded, automatically generates power grid accident short message, and
Quickly it is sent to director.
In the present invention, the special circumstances described in S3 steps are excluded, including：1. detect that what signal was related to sets
During for debugging, the listed information such as control, maintenance of standing be present, exclude；2. for bus equipment, collection at least two-phase voltage is also needed, such as
Fruit is more than 3kV, then excludes.
Further, described SOE message informations include voltage, the information on load of equipment, and equipment protecting equipment
State warning information.Voltage, information on load and switch, disconnecting link, protection including equipment such as transformer station, circuit, transformer, buses
Deng the state warning information of device.
Further, SOE message informations are grouped into the SOE message informations collected in described S1 steps
In, take empirical value 16 seconds as the division for the period carrying out one group of signal, if the signal that same equipment is sent appear in it is adjacent
In two groups, then using first SOE message time of the equipment as starting point, whole signals of the equipment in 16 seconds are divided into one
New group is analyzed.
Further, Signal Matching rule goes out occurrence including keyword, operation relation, SOE messages in described S2 steps
Number and logical relation.
Further, accident pattern includes circuit class, bus class, decompression class, capacitance kind, reactance class in described S2 steps
And main transformer class.
Further, grade judgement is carried out to different classes of accident event in described S5 steps, wherein described line
Road class, bus class, capacitance kind, reactance class and main transformer class accident event judge accident event etc. according to the unplanned outage time
Level；Described voltage class judges accident event grade according to as described below：
Accident event grade is judged by decompression website situation；
By 10KV decompression bus quantitative determination accident event grades；
Whole city's load proportion is accounted for by loss load and judges accident event grade；
Whole city's user's ratio is accounted for by customer interrupted and judges accident event grade；
Event class is judged by power failure city number of users；
Accident event grade is judged by customer interrupted number；
Accident event grade is judged by loss load number；
Judge accident event grade by losing city load number.
Further, according to highest incident classification in the decompression class incident classification judged as decompression class accident event etc.
Level result of determination.
The present invention also provides a kind of power grid accident signal auto-check system, wherein, including：
SOE real time information sampling modules, for being alerted by gathering in real time with depth analysis EMS system SOE information, crucial remote measurement
Signal message, it is derived from SOE signal messages；
Fault type expert database module, for dividing the accident pattern of different electrical equipment protection acts, for each accident
Type, establish Signal Matching rule；
Accident diagnosis module, it is connected respectively with SOE real time information samplings module, fault type expert database module, by what is filtered out
SOE signal messages are matched with the Signal Matching rule in fault type experts database, if the match is successful, for default special
Situation is excluded；
Real-time Load number of users acquisition module, is connected with accident diagnosis module, for gathering EMS system distribution network line electricity in real time
Telemetry is flowed, it is accurate to calculate decompression bus or transformer station's load, by the data correlation with marketing system, thing is obtained in real time
Therefore loss number of users, responsible consumer data message；
Accident event grade discrimination module, be connected respectively with Real-time Load number of users acquisition module, accident diagnosis module, for from
Six load, user, decompression bus number, decompression number of users, responsible consumer and accumulated time dimensions carry out accident event grade
Composite rating and dynamical evolution；
Accident release quickly module, it is connected with accident event grade discrimination module, for for accident diagnosis result, according to advance
The message template of formulation, power grid accident impact analysis result is loaded, automatically generates power grid accident short message, and be quickly sent to responsible
People.
In the present invention, the special circumstances described in accident diagnosis module are excluded, including：1. detect that signal relates to
And equipment exist debugging, the listed information such as control, maintenance of stand when, exclusion；2. for bus equipment, collection at least two-phase electricity is also needed
Pressure, if greater than 3kV, is then excluded.
Further, described Signal Matching rule includes keyword, operation relation, SOE messages occurrence number and patrolled
The relation of collecting.
Further, described accident pattern includes circuit class, bus class, decompression class, capacitance kind, reactance class and main transformer
Class.
Compared with prior art, beneficial effect is：A kind of power grid accident signal automatic diagnosis method provided by the invention and
System, realize warning information quick diagnosis and issue, improve the treatment effeciency of event of failure, make the processing of scheduling warning information by
" manual analysis type " rises to " smart ", effectively improves electric network failure diagnosis and fault message efficiency for issuing, mitigates and adjusts
Spend person works' pressure；Accident treatment intellectual analysis decision process covers the overall process of information processing from low to high, realizes to reality
Operation of power networks state in border carries out fault diagnosis and information issue；By way of man-machine information interaction, make dispatcher in face of multiple
During miscellaneous failure, the source of trouble can be more rapidly positioned, decision support is provided for dispatcher from information gathering, analysis, processing etc..
Brief description of the drawings
Fig. 1 is the inventive method flow chart.
Fig. 2 is overall structure diagram of the present invention.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts and have omission；To those skilled in the art, some known features and its explanation may be omitted in accompanying drawing
It will be understood by.Being given for example only property of position relationship explanation described in accompanying drawing, it is impossible to be interpreted as the limitation to this patent.
As shown in figure 1, a kind of power grid accident signal automatic diagnosis method, wherein, comprise the following steps：
S1. SOE real time information samplings, the collection SOE message informations, and being grouped in real time from EMS system；
S2. fault type experts database is established, the accident pattern of different electrical equipment protection acts is divided, for each
Kind accident pattern, establish Signal Matching rule；
S3. accident diagnosis is carried out, the Signal Matching in the every group of SOE message information filtered out and fault type experts database is advised
Then matched, if the match is successful, then excluded for default special circumstances；
S4. Real-time Load and loss number of users are acquired, gather EMS system distribution network line telemetering of current number in real time
According to, it is accurate to calculate decompression bus or transformer station's load, by the data correlation with marketing system, causality loss is obtained in real time and is used
Amount, responsible consumer data message；
S5. accident event grade judgement is carried out, accident is classified according to different classes of, to different classes of accident event
Carry out grade judgement；Enter from six load, user, decompression bus number, decompression number of users, responsible consumer and accumulated time dimensions
Row accident event grade composite rating and dynamical evolution；
S6. accident release quickly is carried out to accident diagnosis result, accident short message intelligent create-rule is established, for accident diagnosis
As a result, according to the message template pre-established, power grid accident impact analysis result is loaded, automatically generates power grid accident short message, and
Quickly it is sent to director.
In the present invention, the special circumstances described in S3 steps are excluded, including：1. detect that what signal was related to sets
During for debugging, the listed information such as control, maintenance of standing be present, exclude；2. for bus equipment, collection at least two-phase voltage is also needed, such as
Fruit is more than 3kV, then excludes.
In certain embodiments, SOE message informations include voltage, the information on load of equipment, and equipment protecting equipment
State warning information.Voltage, information on load and switch, disconnecting link, protection including equipment such as transformer station, circuit, transformer, buses
Deng the state warning information of device.
In certain embodiments, SOE message informations are grouped into the SOE message informations collected in S1 steps
In, take empirical value 16 seconds as the division for the period carrying out one group of signal, if the signal that same equipment is sent appear in it is adjacent
In two groups, then using first SOE message time of the equipment as starting point, whole signals of the equipment in 16 seconds are divided into one
New group is analyzed.
In certain embodiments, Signal Matching rule goes out occurrence including keyword, operation relation, SOE messages in S2 steps
Number and logical relation.
In certain embodiments, accident pattern includes circuit class, bus class, decompression class, capacitance kind, reactance in S2 steps
Class and main transformer class.
In certain embodiments, grade judgement is carried out to different classes of accident event in S5 steps, wherein described line
Road class, bus class, capacitance kind, reactance class and main transformer class accident event judge accident event etc. according to the unplanned outage time
Level；Described voltage class judges accident event grade according to as described below：
Accident event grade is judged by decompression website situation；
By 10KV decompression bus quantitative determination accident event grades；
Whole city's load proportion is accounted for by loss load and judges accident event grade；
Whole city's user's ratio is accounted for by customer interrupted and judges accident event grade；
Event class is judged by power failure city number of users；
Accident event grade is judged by customer interrupted number；
Accident event grade is judged by loss load number；
Judge accident event grade by losing city load number.
Further, according to highest incident classification in the decompression class incident classification judged as decompression class accident event etc.
Level result of determination.
As shown in Fig. 2 the present invention also provides a kind of power grid accident signal auto-check system, wherein, including：
SOE real time information sampling modules, for being alerted by gathering in real time with depth analysis EMS system SOE information, crucial remote measurement
Signal message, it is derived from SOE signal messages；
Fault type expert database module, for dividing the accident pattern of different electrical equipment protection acts, for each accident
Type, establish Signal Matching rule；
Accident diagnosis module, it is connected respectively with SOE real time information samplings module, fault type expert database module, by what is filtered out
SOE signal messages are matched with the Signal Matching rule in fault type experts database, if the match is successful, for default special
Situation is excluded；
Real-time Load number of users acquisition module, is connected with accident diagnosis module, for gathering EMS system distribution network line electricity in real time
Telemetry is flowed, it is accurate to calculate decompression bus or transformer station's load, by the data correlation with marketing system, thing is obtained in real time
Therefore loss number of users, responsible consumer data message；
Accident event grade discrimination module, be connected respectively with Real-time Load number of users acquisition module, accident diagnosis module, for from
Six load, user, decompression bus number, decompression number of users, responsible consumer and accumulated time dimensions carry out accident event grade
Composite rating and dynamical evolution；
Accident release quickly module, it is connected with accident event grade discrimination module, for for accident diagnosis result, according to advance
The message template of formulation, power grid accident impact analysis result is loaded, automatically generates power grid accident short message, and be quickly sent to responsible
People.
In the present invention, the special circumstances described in accident diagnosis module are excluded, including：1. detect that signal relates to
And equipment exist debugging, the listed information such as control, maintenance of stand when, exclusion；2. for bus equipment, collection at least two-phase electricity is also needed
Pressure, if greater than 3kV, is then excluded.
Specifically, Signal Matching rule includes keyword, operation relation, SOE messages occurrence number and logical relation.
Wherein, accident pattern includes circuit class, bus class, decompression class, capacitance kind, reactance class and main transformer class.
In the present invention, the multi information system data interconnection such as EMS system, marketing system, short message sending platform is realized,
Various information needed for the disposal of Overall Acquisition power grid accident, it is accurate in real time to grasp fault message issue situation, by all kinds of accidents
The analysis of typical SOE information sequences, establish and cover 10kV to the circuit of 500kV voltage class, bus, main transformer, electric capacity, reactance etc.
The representative accident SOE series models of various kinds of equipment, and can be accumulated according to true fault data and model is modified or manually determined
Adopted model, realize the diagnosis to relay fail, the complex faults such as tripping operation of bypassing the immediate leadership.Pass through the electricity in comparative analysis history decompression information
Pressure amplitude value mutation feature and temporal aspect, it is determined that the voltage magnitude and sequential critical pumping rate of bus loss of pressure, realize bus mistake
The accurate collection of pressure；By the way that collecting device is listed and delisted temporal information, and contrast, realize listed with SOE signals time scale information
Commissioning device signal filters.
In the present invention, devise a set of by gathering EMS system distribution line telemetering of current data, accumulation calculating in real time
The method of decompression load, nearest 15 seconds sampling instant decompression buses or transformer station's load before accurate calculating accident, is effectively increased
Lose the computational accuracy of load.
In the present invention, fault type experts database uses full open model Maintainability designing, and it is easy easily to edit maintaining method
Learn, man-machine interface is friendly, and the background program design without complexity can be modified or increase newly to failure SOE series models, can
Electric network fault type feature complicated and changeable is adapted to, and solves the defects of shake, omission that SOE information gatherings are likely to occur, with
Failure accumulation improves constantly diagnosis accuracy.Accident event ranking is adjusted according to southern net accident advise completely, and data source is in EMS
System and marketing system real time data, as a result accurately, it is a variety of to support that diagnostic result is directly inputted or accident information is manually entered etc.
Means, full side is realized from dimensions such as loss load, decompression bus, decompression plant stand, loss user, city user, responsible consumers
Comprehensive position grading, and accumulated time dimension is introduced, realize incident classification dynamical evolution.According to Analysis on Fault Diagnosis core letter
Breath, unified short message generting machanism is established, key generation failure short message, thoroughly changes and established different message template in the past, according to not
Same type accident information distinguishes the working method of human-edited, greatly improves information distributing efficiency.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (10)
1. a kind of power grid accident signal automatic diagnosis method, it is characterised in that comprise the following steps：
S1. SOE real time information samplings, the collection SOE message informations, and being grouped in real time from EMS system；
S2. fault type experts database is established, the accident pattern of different electrical equipment protection acts is divided, for each
Kind accident pattern, establish Signal Matching rule；
S3. accident diagnosis is carried out, the Signal Matching in the every group of SOE message information filtered out and fault type experts database is advised
Then matched, if the match is successful, then excluded for default special circumstances；
S4. Real-time Load and loss number of users are acquired, gather EMS system distribution network line telemetering of current number in real time
According to, it is accurate to calculate decompression bus or transformer station's load, by the data correlation with marketing system, causality loss is obtained in real time and is used
Amount, responsible consumer data message；
S5. accident event grade judgement is carried out, accident is classified according to different classes of, to different classes of accident event
Carry out grade judgement；Enter from six load, user, decompression bus number, decompression number of users, responsible consumer and accumulated time dimensions
Row accident event grade composite rating and dynamical evolution；
S6. accident release quickly is carried out to accident diagnosis result, accident short message intelligent create-rule is established, for accident diagnosis
As a result, according to the message template pre-established, power grid accident impact analysis result is loaded, automatically generates power grid accident short message, and
Quickly it is sent to director.
A kind of 2. power grid accident signal automatic diagnosis method according to claim 1, it is characterised in that described SOE reports
Literary information includes voltage, the information on load of equipment, and the state warning information of equipment protecting equipment.
A kind of 3. power grid accident signal automatic diagnosis method according to claim 1, it is characterised in that described S1 steps
In SOE message informations are grouped into the SOE message informations collected, be the period to carry out one group with empirical value 16 seconds
The division of signal, if the signal that same equipment is sent is appeared in two adjacent groups, with first SOE message of the equipment
Time is starting point, and whole signals of the equipment in 16 seconds are divided into a new group is analyzed.
A kind of 4. power grid accident signal automatic diagnosis method according to claim 1, it is characterised in that described S2 steps
Middle Signal Matching rule includes keyword, operation relation, SOE messages occurrence number and logical relation.
A kind of 5. power grid accident signal automatic diagnosis method according to claim 4, it is characterised in that described S2 steps
Middle accident pattern includes circuit class, bus class, decompression class, capacitance kind, reactance class and main transformer class.
A kind of 6. power grid accident signal automatic diagnosis method according to claim 5, it is characterised in that described S5 steps
In grade judgement is carried out to different classes of accident event, wherein described circuit class, bus class, capacitance kind, reactance class and
Main transformer class accident event judges accident event grade according to the unplanned outage time；Described voltage class is sentenced according to as described below
Determine accident event grade：
Accident event grade is judged by decompression website situation；
By 10KV decompression bus quantitative determination accident event grades；
Whole city's load proportion is accounted for by loss load and judges accident event grade；
Whole city's user's ratio is accounted for by customer interrupted and judges accident event grade；
Event class is judged by power failure city number of users；
Accident event grade is judged by customer interrupted number；
Accident event grade is judged by loss load number；
Judge accident event grade by losing city load number.
7. a kind of power grid accident signal automatic diagnosis method according to claim 6, it is characterised in that according to what is judged
Highest incident classification is as decompression class accident event grade result of determination in decompression class incident classification.
A kind of 8. power grid accident signal auto-check system, it is characterised in that including：
SOE real time information sampling modules, for being alerted by gathering in real time with depth analysis EMS system SOE information, crucial remote measurement
Signal message, it is derived from SOE signal messages；
Fault type expert database module, for dividing the accident pattern of different electrical equipment protection acts, for each accident
Type, establish Signal Matching rule；
Accident diagnosis module, it is connected respectively with SOE real time information samplings module, fault type expert database module, by what is filtered out
SOE signal messages are matched with the Signal Matching rule in fault type experts database, if the match is successful, for default special
Situation is excluded；
Real-time Load number of users acquisition module, is connected with accident diagnosis module, for gathering EMS system distribution network line electricity in real time
Telemetry is flowed, it is accurate to calculate decompression bus or transformer station's load, by the data correlation with marketing system, thing is obtained in real time
Therefore loss number of users, responsible consumer data message；
Accident event grade discrimination module, be connected respectively with Real-time Load number of users acquisition module, accident diagnosis module, for from
Six load, user, decompression bus number, decompression number of users, responsible consumer and accumulated time dimensions carry out accident event grade
Composite rating and dynamical evolution；
Accident release quickly module, it is connected with accident event grade discrimination module, for for accident diagnosis result, according to advance
The message template of formulation, power grid accident impact analysis result is loaded, automatically generates power grid accident short message, and be quickly sent to responsible
People.
A kind of 9. power grid accident signal auto-check system according to claim 8, it is characterised in that described signal
Include keyword, operation relation, SOE messages occurrence number and logical relation with rule.
A kind of 10. power grid accident signal auto-check system according to claim 8 or claim 9, it is characterised in that described thing
Therefore type includes circuit class, bus class, decompression class, capacitance kind, reactance class and main transformer class.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108765893A (en) * | 2018-06-06 | 2018-11-06 | 广东电网有限责任公司 | A kind of power failure alarm method and system based on metering automation system |
| CN109191007A (en) * | 2018-09-28 | 2019-01-11 | 广东电网有限责任公司 | A kind of method and system that grid equipment N-1 consequence grade determines automatically |
| CN109190941A (en) * | 2018-08-17 | 2019-01-11 | 广东电网有限责任公司 | A kind of automatic risk-assessment method of grid operation mode |
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| CN109190941A (en) * | 2018-08-17 | 2019-01-11 | 广东电网有限责任公司 | A kind of automatic risk-assessment method of grid operation mode |
| CN109191007A (en) * | 2018-09-28 | 2019-01-11 | 广东电网有限责任公司 | A kind of method and system that grid equipment N-1 consequence grade determines automatically |
| CN109445306B (en) * | 2018-10-26 | 2022-01-25 | 湖南磁浮技术研究中心有限公司 | Automatic associated parameter interpretation method and system based on rule configuration analysis |
| CN109445306A (en) * | 2018-10-26 | 2019-03-08 | 湖南磁浮技术研究中心有限公司 | Automatic associated parameter interpretation method and system based on rule configuration analysis |
| CN109389323A (en) * | 2018-10-31 | 2019-02-26 | 广东电网有限责任公司 | Accident event level determination method, device and intelligent terminal |
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| CN111047464A (en) * | 2019-12-04 | 2020-04-21 | 国网湖南省电力有限公司 | Automatic short message sending method and system for fault tripping of power system |
| CN111107146A (en) * | 2019-12-17 | 2020-05-05 | 国网湖南省电力有限公司 | Real-time distribution method of power grid accident information |
| CN112001588A (en) * | 2020-07-17 | 2020-11-27 | 贵州电网有限责任公司 | Accident event online pre-judging method and device based on N-1 state |
| CN113030652A (en) * | 2021-04-19 | 2021-06-25 | 国网上海市电力公司 | KMP algorithm-based power distribution network line fault identification and processing method |
| CN113296491A (en) * | 2021-05-13 | 2021-08-24 | 中国船舶重工集团公司第七O三研究所无锡分部 | Fault diagnosis device and system for nuclear power emergency diesel generating set |
| CN113224844A (en) * | 2021-05-19 | 2021-08-06 | 广东电网有限责任公司 | Intelligent sensing method, system and equipment for distribution network bus voltage loss event |
| CN113743717A (en) * | 2021-07-26 | 2021-12-03 | 南方电网深圳数字电网研究院有限公司 | Reminding method, equipment and storage medium based on classification technology |
| CN113743717B (en) * | 2021-07-26 | 2024-08-13 | 南方电网数字平台科技(广东)有限公司 | Reminding method, equipment and storage medium based on grading technology |
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