CN115567145B - Time correction method and terminal based on power grid multi-source data fusion - Google Patents

Time correction method and terminal based on power grid multi-source data fusion Download PDF

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CN115567145B
CN115567145B CN202211517510.7A CN202211517510A CN115567145B CN 115567145 B CN115567145 B CN 115567145B CN 202211517510 A CN202211517510 A CN 202211517510A CN 115567145 B CN115567145 B CN 115567145B
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time
service data
power grid
data
service
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CN115567145A (en
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李强
施忠民
姚硕
赵峰
臧志斌
赵建伟
王震
聂桂平
周航帆
佘文魁
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State Grid Siji Location Service Co ltd
XIAMEN GREAT POWER GEO INFORMATION TECHNOLOGY CO LTD
State Grid Information and Telecommunication Co Ltd
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State Grid Siji Location Service Co ltd
XIAMEN GREAT POWER GEO INFORMATION TECHNOLOGY CO LTD
State Grid Information and Telecommunication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention provides a time correction method and a terminal based on power grid multi-source data fusion, which comprise the following steps: s1, acquiring service data of power grid equipment, and recording a sending timestamp of the service data based on a time service function of a Beidou system; s2, judging whether the concentrator receives the service data or not, and if so, recording a receiving timestamp of the service data based on the time service function of the Beidou system; s3, packaging the service data according to the sending time stamp and the receiving time stamp to perform multi-source data fusion, and constructing an integrated view of the service data by taking a map as a carrier; s4, inquiring the service data in a preset time period based on the integrated view, and if the integrated view has unresponsive power grid equipment, sending alarm information and returning preset power grid equipment information; the precision of the whole network clock is unified, the data acquisition synchronization rate and accuracy are improved, and scientific management and comprehensive operation of the power grid are facilitated.

Description

Time correction method and terminal based on power grid multi-source data fusion
Technical Field
The invention relates to the technical field of time correction, in particular to a time correction method and a terminal based on power grid multi-source data fusion.
Background
At present, the comprehensive energy management of a power grid is in a digital transformation mode, and the scientificity of decision making is improved by taking dynamic multi-source data as the basis of management. Thus, the quality of the multi-source data determines the quality of the management decisions.
The planning service of the power grid has the characteristics of multiple data sources, large data volume, multiple statistical dimensions and the like, the clock precision of each terminal cannot be unified due to different regions and positions between different transformer substations and a central station, and the time of the power grid equipment output of each transformer substation and the central station has certain deviation, so that the time between different transformer substations and the central station is inconsistent, and faults such as power utilization record data loss, disordered operation records or system paralysis and the like are easily caused; in addition, the operation monitoring data of the terminal device cannot be timely and accurately acquired due to network congestion and delay of the power grid data, and scientific management and operation of the power grid are not facilitated.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the time correction method and the time correction terminal based on the power grid multi-source data fusion are provided, the clock precision of power grid equipment is unified, and the synchronization rate and the accuracy of equipment operation monitoring data acquisition are improved.
In order to solve the technical problems, the invention adopts the technical scheme that:
a time correction method based on power grid multi-source data fusion comprises the following steps:
s1, acquiring service data of power grid equipment, and recording a sending timestamp of the service data based on a time service function of a Beidou system;
s2, judging whether the concentrator receives the service data or not, and if so, recording a receiving timestamp of the service data based on the time service function of the Beidou system;
s3, packaging the service data according to the sending time stamp and the receiving time stamp to perform multi-source data fusion, and constructing an integrated view of the service data by taking a map as a carrier;
and S4, inquiring the service data in a preset time period based on the integrated view, and if the integrated view has unresponsive power grid equipment, sending alarm information and returning preset power grid equipment information.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
a time correction terminal based on power grid multi-source data fusion comprises a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor executes the computer program to realize the following steps:
s1, acquiring service data of power grid equipment, and recording a sending timestamp of the service data based on a time service function of a Beidou system;
s2, judging whether the concentrator receives the service data or not, and if so, recording a receiving timestamp of the service data based on the time service function of the Beidou system;
s3, packaging the service data according to the sending time stamp and the receiving time stamp to perform multi-source data fusion, and constructing an integrated view of the service data by taking a map as a carrier;
and S4, inquiring the service data in a preset time period based on the integrated view, and if the integrated view has unresponsive power grid equipment, sending alarm information and returning preset power grid equipment information.
The invention has the beneficial effects that: time calibration is carried out on the sending time and the receiving time of the service data based on the time service function of the Beidou system, and the clock unification of the service data is ensured; meanwhile, by means of a double-clock calibration mode of recording the sending time stamp and the receiving time stamp of the data, the problem that the operation monitoring data of the terminal equipment cannot be timely and accurately acquired due to congestion and delay of a power grid transmission network is solved; in addition, the Beidou time service technology is used as a time reference, the clock precision is improved, the synchronization rate and the accuracy of equipment operation monitoring data acquisition are improved, multi-source data fusion is carried out on the basis of time synchronization business data, and scientific management and comprehensive operation of a power grid are facilitated.
Drawings
Fig. 1 is a flowchart illustrating steps of a time correction method based on power grid multi-source data fusion according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a site computation principle of an integrated view according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a line calculation principle of an integrated view provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a time correction terminal based on power grid multi-source data fusion according to an embodiment of the present invention;
description of the reference symbols:
1. a time correction terminal based on power grid multi-source data fusion; 2. a memory; 3. a processor.
Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a time correction method based on power grid multi-source data fusion provided in an embodiment of the present invention includes:
s1, acquiring service data of power grid equipment, and recording a sending timestamp of the service data based on a time service function of a Beidou system;
s2, judging whether the concentrator receives the service data or not, and if so, recording a receiving timestamp of the service data based on the time service function of the Beidou system;
s3, packaging the service data according to the sending time stamp and the receiving time stamp to perform multi-source data fusion, and constructing an integrated view of the service data by taking a map as a carrier;
and S4, inquiring the service data in a preset time period based on the integrated view, and if the integrated view has unresponsive power grid equipment, sending alarm information and returning preset power grid equipment information.
From the above description, the beneficial effects of the present invention are: time calibration is carried out on the sending time and the receiving time of the service data based on the time service function of the Beidou system, and the clock unification of the service data is ensured; meanwhile, by means of a double-clock calibration mode of recording the sending time stamp and the receiving time stamp of the data, the problem that the operation monitoring data of the terminal equipment cannot be timely and accurately acquired due to congestion and delay of a power grid transmission network is solved; in addition, the Beidou time service technology is used as a time reference, the clock precision is improved, the synchronization rate and the accuracy of equipment operation monitoring data acquisition are improved, multi-source data fusion is carried out on the basis of time synchronization business data, and scientific management and comprehensive operation of a power grid are facilitated.
Further, the S1 includes:
s11, acquiring service data of a plurality of power grid devices, wherein the service data come from a plurality of service data systems;
s12, synchronizing the time of the plurality of service data systems based on the time service function of the Beidou system;
and S13, recording the sending time stamp corresponding to the service data.
As can be seen from the above description, the service data has the characteristics of multiple data sources, multiple statistical dimensions, and the like, so that different types of service data are stored in different service data systems one by one; the service data of different data sources often cannot unify time precision, so that the time data of a plurality of data sources are unified based on the time service function of the Beidou system, and the faults of electricity utilization record data loss, disordered operation records or system paralysis and the like caused by inconsistent equipment time information are avoided.
Further, the S2 includes:
s21, receiving Beidou standard time service data according to a preset period, acquiring the regional time of a concentrator, judging whether the Beidou standard time service data is consistent with the regional time, and if not, updating the regional time of the concentrator according to the Beidou standard time service data to obtain standard time;
and S22, judging whether the concentrator receives the service data and the sending time stamp, if so, recording the receiving time stamp of the service data according to the standard time.
According to the description, the power grid equipment transmits data to the concentrator, the operation monitoring data of the terminal equipment cannot be acquired timely and accurately due to network congestion and delay, and therefore the concentrator receives the service data and then correspondingly records the receiving timestamp, the standard time of the power grid management system is unified, the time disorder of the data is avoided, meanwhile, data query and monitoring work are performed after multi-source data fusion in the later period is facilitated, and scientific management and operation of the power grid system are guaranteed.
Further, the S3 includes:
s31, packaging the service data according to the sending time stamp and the receiving time stamp, matching the packaged service data with a preset data model, establishing index files among a plurality of service data systems, generating a grid model containing the connection relation of the plurality of power grid devices according to the index files, and obtaining a grid model layer;
s32, dividing the service data into a plurality of groups of time data according to the sending time stamp and the receiving time stamp to obtain a time data layer;
and S33, with the map as a basic map layer, superposing the time data map layer and the net rack model map layer on the basic map layer to obtain an integrated view of the service data.
According to the description, comprehensive display is carried out on the map layer based on the geographic information on the platform according to the corresponding connection relation of the power grid equipment, and a time-synchronized service data is integrated to construct a map of the comprehensive energy of the electric power; compared with the traditional data statistical table, the method for inquiring the time data by the integrated view is clearer and more intuitive; the map of the comprehensive power energy can support regional comprehensive power energy analysis, perform power grid diagnosis analysis, load prediction, power balance calculation, power grid operation simulation calculation and the like, and can realize comprehensive power energy planning based on geographic space information, thereby achieving the effect of multiple purposes; the time synchronization-based standardized intelligent analysis of the multi-source data, the geographic space and the grid structure reduces the factors of human intervention, and realizes the standardization of a power grid equipment analysis system.
Further, the S4 includes:
s41, receiving the starting time and the ending time of the query data to obtain a preset time period;
s42, inquiring time data in the preset time period based on the integrated view, if unresponsive power grid equipment exists in the time data layer, returning to the grid model layer, and marking the power grid equipment in the grid model layer;
s43, acquiring service data of the power grid equipment according to the grid model layer, judging whether the working state of the power grid equipment is normal or not according to the service data, if not, sending alarm information, and returning preset power grid equipment information.
According to the description, the integrated view can support one-key query of all relevant data in a specified time period, and the map-based data display mode is more visual and intuitive, so that other data of the equipment can be conveniently queried for analyzing faults, the fault removal efficiency is improved, and the flow of power grid management work is simplified; meanwhile, the system can automatically detect whether the equipment sends data regularly or not so as to judge whether faults or other unexpected conditions exist in the corresponding equipment or not, automatic alarm is carried out, and scientific management of the power grid data is realized.
Referring to fig. 4, another embodiment of the present invention provides a time correction terminal based on grid multi-source data fusion, including a memory, a processor, and a computer program stored in the memory and running on the processor, where the processor executes the computer program to implement the following steps:
s1, acquiring service data of power grid equipment, and recording a sending timestamp of the service data based on a time service function of a Beidou system;
s2, judging whether the concentrator receives the service data or not, and if so, recording a receiving timestamp of the service data based on the time service function of the Beidou system;
s3, packaging the service data according to the sending time stamp and the receiving time stamp to perform multi-source data fusion, and constructing an integrated view of the service data by taking a map as a carrier;
and S4, inquiring the service data in a preset time period based on the integrated view, and if the integrated view has unresponsive power grid equipment, sending alarm information and returning preset power grid equipment information.
From the above description, the beneficial effects of the present invention are: time calibration is carried out on the sending time and the receiving time of the service data based on the time service function of the Beidou system, and the clock unification of the service data is ensured; meanwhile, by means of a double-clock calibration mode of recording the sending time stamp and the receiving time stamp of the data, the problem that the operation monitoring data of the terminal equipment cannot be timely and accurately acquired due to congestion and delay of a power grid transmission network is solved; in addition, the Beidou time service technology is used as a time reference, the clock precision is improved, the synchronization rate and the accuracy of equipment operation monitoring data acquisition are improved, multi-source data fusion is carried out on the basis of time synchronization business data, and scientific management and comprehensive operation of a power grid are facilitated.
Further, the S1 includes:
s11, acquiring service data of a plurality of power grid devices, wherein the service data come from a plurality of service data systems;
s12, synchronizing the time of the plurality of service data systems based on the time service function of the Beidou system;
and S13, recording the sending time stamp corresponding to the service data.
As can be seen from the above description, the service data has the characteristics of multiple data sources, multiple statistical dimensions, and the like, so that different types of service data are stored in different service data systems one by one; the service data of different data sources often cannot unify time precision, so that the time data of a plurality of data sources are unified based on the time service function of the Beidou system, and the faults of electricity utilization record data loss, disordered operation records or system paralysis and the like caused by inconsistent equipment time information are avoided.
Further, the S2 includes:
s21, receiving Beidou standard time service data according to a preset period, acquiring regional time of a concentrator, judging whether the Beidou standard time service data is consistent with the regional time, and if not, updating the regional time of the concentrator according to the Beidou standard time service data to obtain standard time;
and S22, judging whether the concentrator receives the service data and the sending time stamp, if so, recording the receiving time stamp of the service data according to the standard time.
According to the description, in the process that the power grid equipment transmits data to the concentrator, network congestion and delay often cause operation monitoring data which cannot be obtained timely and accurately, therefore, the concentrator correspondingly records the receiving timestamp after receiving the service data, the standard time of the power grid management system is unified, the time disorder of the data is avoided, meanwhile, data inquiry and monitoring work are performed after later-stage multi-source data fusion is facilitated, and scientific management and operation of the power grid system are guaranteed.
Further, the S3 includes:
s31, packaging the service data according to the sending time stamp and the receiving time stamp, matching the packaged service data with a preset data model, establishing index files among a plurality of service data systems, generating a grid model containing the connection relation of the plurality of power grid devices according to the index files, and obtaining a grid model layer;
s32, dividing the service data into a plurality of groups of time data according to the sending time stamp and the receiving time stamp to obtain a time data layer;
and S33, with the map as a basic map layer, superposing the time data map layer and the net rack model map layer on the basic map layer to obtain an integrated view of the service data.
According to the description, comprehensive display is carried out on the map layer based on the geographic information on the platform according to the corresponding connection relation of the power grid equipment, and a time-synchronized service data is integrated to construct a map of the comprehensive energy of the electric power; compared with the traditional data statistical table, the mode of inquiring time data by the integrated view is clearer and more intuitive; the map of the comprehensive power energy can support regional comprehensive power energy analysis, perform power grid diagnosis analysis, load prediction, power balance calculation, power grid operation simulation calculation and the like, and realize time and space synchronization-based comprehensive power energy management and planning, so that the effect of multiple purposes of the map is achieved; the time synchronization-based standardized intelligent analysis of the multi-source data, the geographic space and the grid structure reduces the factors of human intervention, and realizes the standardization of a power grid equipment analysis system.
Further, the S4 includes:
s41, receiving the starting time and the ending time of the query data to obtain a preset time period;
s42, inquiring time data in the preset time period based on the integrated view, returning to the grid model layer if the time data layer has unresponsive power grid equipment, and marking the power grid equipment on the grid model layer;
s43, acquiring service data of the power grid equipment according to the grid model layer, judging whether the working state of the power grid equipment is normal or not according to the service data, if not, sending alarm information, and returning preset power grid equipment information.
According to the description, the integrated view can support one-key query of all relevant data in a specified time period, and the map-based data display mode is more visual and intuitive, so that other data of the equipment can be conveniently queried for analyzing faults, the fault removal efficiency is improved, and the flow of power grid management work is simplified; meanwhile, the system can automatically detect whether the equipment sends data regularly or not so as to judge whether faults or other unexpected conditions exist in the corresponding equipment or not, automatic alarm is carried out, and scientific management of the power grid data is realized.
The embodiment of the invention provides a time correction method and a terminal based on power grid multi-source data fusion, which can be applied to comprehensive data management of a power grid source, grid, load and storage integrated system, unify the precision of a whole-network clock, and improve the synchronization rate and the accuracy of equipment operation monitoring data acquisition, and are explained by specific embodiments as follows:
referring to fig. 1, a first embodiment of the present invention is:
a time correction method based on power grid multi-source data fusion comprises the following steps:
s1, acquiring service data of the power grid equipment, and recording a sending timestamp of the service data based on a time service function of a Beidou system.
The S1 comprises:
s11, acquiring service data of a plurality of power grid devices, wherein the service data come from a plurality of service data systems;
wherein the service data includes: monitoring data, power grid operation data and power grid management data in the operation of the power grid equipment;
the monitoring data also comprises scheduling operation data, equipment fault and maintenance data, electric energy quality detection data, GIS data and the like; the operation data comprises power market data, customer service data and other external data of the power grid; the management data includes data for internal administration of the power grid.
S12, synchronizing the time of the plurality of service data systems based on the time service function of the Beidou system;
and S13, recording the sending time stamp corresponding to the service data.
Each power grid device is provided with a Beidou terminal, a Beidou satellite signal is periodically received, accurate time information and position information of the power grid device are calculated according to the Beidou satellite signal, and the accurate time information and the position information are stored as power grid device information; meanwhile, the power grid equipment communicates through RS485, beidou time service data and position information are sent to the concentrator according to a preset period, time of the concentrator is calibrated, and geographic position information of the power grid equipment is updated, so that consistency and simultaneity of measurement data acquisition are improved.
The source, network, load and storage power grid equipment are all provided with data acquisition devices; data collected by the power grid equipment through the data collection device can be grouped and collected into each service data system as service data, for example, collected space position coordinates of the power grid equipment can be stored in a power grid GIS platform, and power measurement data collected by the power grid equipment can be stored in an equipment real-time operation measurement system.
S2, judging whether the concentrator receives the service data, if so, recording a receiving timestamp of the service data based on the time service function of the Beidou system.
The S2 comprises the following steps:
s21, receiving Beidou standard time service data according to a preset period, acquiring the regional time of a concentrator, judging whether the Beidou standard time service data is consistent with the regional time, and if not, updating the regional time of the concentrator according to the Beidou standard time service data to obtain standard time;
and S22, judging whether the concentrator receives the service data and the sending time stamp, if so, recording the receiving time stamp of the service data according to the standard time.
The service data collected by the power grid equipment is reported to the concentrator through RS485 communication, and the data interaction protocol meets the DL/T698.45-2017 power industry standard, so that the standardization of the collected data is realized.
And S3, packaging the service data according to the sending time stamp and the receiving time stamp to perform multi-source data fusion, and constructing an integrated view of the service data by taking a map as a carrier.
The S3 comprises the following steps:
s31, packaging the service data according to the sending time stamp and the receiving time stamp, matching the packaged service data with a preset data model, establishing index files among a plurality of service data systems, generating a grid model containing the connection relation of the plurality of power grid devices according to the index files, and obtaining a grid model layer;
referring to table 1, matching the packaged service data with a preset data model specifically includes: the preset data model comprises basic service data, time service data, geographic space data and system fusion data; wherein, the basic service data comprises a reference ID, a name and the like; geospatial data includes longitude, latitude, elevation, address information, etc.; the system fusion data comprises an A system equipment ID, a B system equipment ID and the like; and filling the service data into the corresponding data part in the data model through a preset matching algorithm or manual operation.
TABLE 1
Figure 99830DEST_PATH_IMAGE001
The establishing of the index file among the plurality of service data systems specifically comprises: recording different system equipment IDs of the power grid equipment in each service data system in service fusion data, and establishing a mapping relation by taking the reference ID as a unique reference number of the power grid equipment; the relevant service data of the device can be obtained by indexing the reference ID in the file, for example: the reference ID of the known equipment in the data model can be inquired about the corresponding equipment ID of the A system, and the related service data of the equipment can be acquired from the A system through the equipment ID of the A system; therefore, the information files and the spatial information data of the equipment can be supplemented from the service data systems of equipment asset management, equipment geographic spatial information management and the like respectively through the reference ID, and the equipment information is perfected.
Generating a grid model containing the connection relations of the plurality of power grid devices according to the index file specifically comprises the following steps: and generating a grid model according to the logic data such as the equipment dependency relationship, the equipment incidence relationship and the like which are described in different service data systems and obtained from the index file.
S32, dividing the service data into a plurality of groups of time data according to the sending time stamp and the receiving time stamp to obtain a time data layer;
the service data with the same receiving time stamp under the same power grid equipment is divided into a group of time data, and meanwhile, the service data with the same sending time stamp under the same receiving time stamp are grouped, so that the data acquisition time of each power grid equipment is accurate, and the inquiry and the management are convenient.
And S33, with the map as a basic map layer, superposing the time data map layer and the net rack model map layer on the basic map layer to obtain an integrated view of the service data.
In an optional implementation manner, a service type and a voltage level corresponding to the power grid device may be obtained from the grid model, and a device logic layer is constructed on the map according to the service type and the voltage level; the method comprises the following steps of designing the shapes and colors of graphic elements of various devices according to various service types and voltage levels so as to perform abstract marking on the devices on a map; and on the basis of the grid model, the time data layer is superposed, namely the measurement data acquired by the power grid equipment is marked or lightened on the equipment logic layer after being analyzed and counted.
And S4, inquiring the service data in a preset time period based on the integrated view, and if the integrated view has unresponsive power grid equipment, sending alarm information and returning preset power grid equipment information.
The S4 comprises the following steps:
s41, receiving the starting time and the ending time of the query data to obtain a preset time period;
s42, inquiring time data in the preset time period based on the integrated view, if unresponsive power grid equipment exists in the time data layer, returning to the grid model layer, and marking the power grid equipment in the grid model layer;
in an optional implementation manner, the measurement data in the preset time period is queried in a manual operation manner or a timing trigger query manner, if a part of unlighted or unmarked power grid equipment exists in a time data layer corresponding to the preset time period, it indicates that the power grid equipment does not report the measurement data, the measurement data is switched to the grid model layer, and the power grid equipment is lit or marked on the grid model layer; the measurement data is time data, and comprises voltage information, power information and other measurement data; the preset time period can be obtained by freely setting the starting time and the ending time of the query data.
S43, acquiring service data of the power grid equipment according to the grid model layer, judging whether the working state of the power grid equipment is normal or not according to the service data, if not, sending alarm information, and returning to preset power grid equipment information corresponding to the power grid equipment with the abnormal working state.
In an optional implementation manner, service data of the lighted or marked power grid equipment is inquired in the grid model layer, and whether the unresponsive power grid equipment meets a normal working period is judged according to a sending time stamp and a receiving time stamp of the service data of the power grid equipment, so that the monitoring of the running state of the power grid equipment is realized.
The preset power grid equipment information is relevant data such as equipment reference ID, equipment area attribute and position information and the like which are convenient for identifying and positioning power grid equipment; the location information includes spatial location coordinates and detailed address descriptions of the grid devices.
It should be noted that the spatial position coordinates are longitude and latitude coordinate information of the power grid device, and the address description is an artificially defined device address area attribute, for example: province, city, county, grid and cell, etc.
In an optional implementation mode, through a basic map, beidou accurate positioning and standard address service, bidirectional checking of the spatial position coordinates and detailed address description of the power grid equipment can be achieved.
The method specifically comprises the following steps:
s44, judging whether the power grid equipment belongs to incremental equipment or stock equipment;
s441, if the power grid equipment belongs to stock equipment, acquiring a spatial position coordinate GIS1 stored in a power grid GIS platform, judging whether the spatial layout of the power grid equipment is reasonable according to a map and the spatial position coordinate, and if so, acquiring address description stored in the power grid GIS platform; and acquiring the spatial position coordinate GIS2 described by the address, comparing the GIS1 with the GIS2, if the distance deviation between the GIS1 and the GIS2 is more than 500m, sending alarm information, and updating the spatial position coordinate or address description with the deviation in the power grid GIS platform.
S442, if the power grid equipment belongs to the incremental equipment, obtaining the spatial position coordinates of the power grid equipment based on the Beidou technology, judging whether the spatial layout of the power grid equipment is reasonable or not according to a map and the spatial position coordinates, and if so, storing the spatial position coordinates into a power grid GIS platform.
Referring to fig. 2 to 3, a second embodiment of the present invention is:
a time correction method based on power grid multi-source data fusion further comprises the following steps after step S4:
and S5, verifying the layout rationality of the power grid equipment according to the integrated view.
The method specifically comprises the following steps:
s51, judging the type of the power grid equipment, and if the power grid equipment belongs to the site equipment, executing the S52; if the power grid equipment belongs to line equipment, executing the step S53;
s52, obtaining edge space position coordinates of the station equipment, constructing a station area according to the edge space position coordinates, judging whether the station area is intersected with other area ranges or not according to the integrated view, and if yes, unreasonable site selection of the station equipment is achieved.
Referring to fig. 2, an example of determining whether a substation to be built destroys the ecological environment is taken. The construction area AB of the substation is a regular quadrangle, and taking the coordinate system in fig. 2 as an example, the coordinate of the closed area AB is described by the edge coordinates of the quadrangle as: { [ A ] 1 ,B 1 ]，[A 2 ,B 2 ]，[A 3 ,B 3 ]，[A 4 ,B 4 ]，[A 1 ,B 1 ]I.e. [ A ] 1 ,B 1 ]And [ A ] 2 ,B 2 ]Two points form a straight line, and the like, four straight lines are formed, and the four straight lines form a closed quadrilateral area. At the same time, an ecological protection wetland is arranged near the construction areaThe closed area CD of the ecological protection wetland is an irregular polygon, and the coordinates of the closed area CD are described by a group of edge coordinates: { [ C ] 1 ,D 1 ]，[C 2 ,D 2 ]，[C 3 ,D 3 ]，……，[C n-1 ,D n-1 ]，[C n ,D n ]，[C 1 ,D 1 ]And forming a closed irregular polygon according to the coordinates according to the construction method of the closed area of the transformer substation. Through the space analysis service of the integrated view, whether an intersection exists between the closed area AB and the closed area CD is calculated, and the mathematical calculation principle is as follows: determine any point [ A ] in the AB region x ,B y ]Whether the X-coordinate value of (A) is between the X-coordinate values of any two points in the CD area, i.e. C x+m ≤A x ≤C x+n (ii) a Determine any point [ A ] in the AB region x ,B y ]Whether or not the Y-coordinate value of (2) is also between the Y-coordinate values of arbitrary two points in the CD area, i.e., D y+o ≤B y ≤D y+p (ii) a If the coordinate [ A ] x ,B y ]Satisfy C x+m ≤A x ≤C x+n And D y+o ≤B y ≤D y+p And then the closed area AB and the closed area CD have intersection, so that the ecological environment of the transformer substation to be built can be damaged.
S53, point space position coordinates of line equipment are obtained, a transmission line is constructed according to the point space position coordinates, whether intersection exists between the transmission line and other areas is judged according to the integrated view, and if the intersection exists, the line equipment is unreasonable in address selection.
Referring to fig. 3, an example of determining whether the high-voltage line crosses the ecological protection area is taken. Taking the coordinate system in fig. 3 as an example, the coordinates of the acquisition points at one section AB of the high-voltage line are: { [ A ] 1 ,B 1 ]，[A 2 ,B 2 ]}. The ecological protection area is an irregular polygon, and the coordinates of the closed area CD are described by a group of coordinates as follows: { [ C ] 1 ,D 1 ]，[C 2 ,D 2 ]，[C 3 ,D 3 ]，……，[C n-1 ,D n-1 ]，[C n ,D n ]，[C 1 ,D 1 ]}. Spatial analysis service through unified viewAnd calculating whether the intersection exists between the high-voltage line AB and the ecological protection area CD, wherein the mathematical calculation principle is as follows: determine any point [ A ] on the line AB x ,B y ]Whether the X-coordinate value of (A) is between the X-coordinate values of any two points in the CD area, i.e. C x+m ≤A x ≤C x+n (ii) a Determine any point [ A ] on the line AB x ,B y ]Whether or not the Y-coordinate value of (2) is also between the Y-coordinate values of any two points in the CD area, i.e., D y+o ≤B y ≤D y+p (ii) a If the coordinate [ A ] x ,B y ]Satisfy C x+m ≤A x ≤C x+n And D y+o ≤B y ≤D y+p The line AB intersects the closed area CD, so the high voltage line crosses the ecological protection area.
And the other areas are non-construction areas such as municipal control regulations, ecological red lines, historical culture red lines, social security red lines and the like.
Referring to fig. 4, a third embodiment of the present invention is:
a time correction terminal 1 based on power grid multi-source data fusion comprises a memory 2, a processor 3 and a computer program which is stored on the memory 2 and runs on the processor 3, wherein any step of the time correction method based on power grid multi-source data fusion in the embodiment is realized when the processor 3 executes the computer program.
In summary, according to the time correction method and the terminal based on the power grid multi-source data fusion, the time calibration is performed on the sending time and the receiving time of the service data based on the time service function of the Beidou system, and the clock unification of the service data is ensured; meanwhile, by means of a double-clock calibration mode of recording the sending time stamp and the receiving time stamp of the data, the problem that the operation monitoring data of the terminal equipment cannot be timely and accurately acquired due to congestion and delay of a power grid transmission network is solved; in addition, the Beidou time service technology is used as a time reference, the precision of the whole network clock is unified, and the synchronization rate and the accuracy of equipment operation monitoring data acquisition are improved. Comprehensively displaying the map layer on the basis of geographic information on a platform according to the corresponding connection relation of the power grid equipment, and constructing a map of the comprehensive energy of the electric power by integrating service data of time synchronization; compared with the traditional data statistical table, the method for inquiring the time data through the integrated view is clearer and more intuitive. Through the one-map-based comprehensive power source, not only can regional comprehensive power source analysis be supported, power grid diagnosis analysis, load prediction, power balance calculation, power grid operation simulation calculation and the like be carried out, but also comprehensive power source planning based on geographic space information can be realized, and the effect of multiple purposes of one map is achieved; the time synchronization-based standardized intelligent analysis of the multi-source data, the geographic space and the grid structure reduces the factors of human intervention, and realizes the standardization of a power grid equipment analysis system.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the accompanying drawings, which are directly or indirectly applied to the related technical fields, are included in the scope of the present invention.

Claims (6)

1. A time correction method based on power grid multi-source data fusion is characterized by comprising the following steps:
s1, acquiring service data of power grid equipment, and recording a sending timestamp of the service data based on a time service function of a Beidou system;
s2, judging whether the concentrator receives the service data or not, and if so, recording a receiving timestamp of the service data based on the time service function of the Beidou system;
s3, packaging the service data according to the sending time stamp and the receiving time stamp to perform multi-source data fusion, and constructing an integrated view of the service data by taking a map as a carrier;
s4, inquiring the service data in a preset time period based on the integrated view, and if the integrated view has unresponsive power grid equipment, sending alarm information and returning preset power grid equipment information;
the S1 comprises:
s11, acquiring service data of a plurality of power grid devices, wherein the service data come from a plurality of service data systems;
s12, synchronizing the time of the plurality of service data systems based on the time service function of the Beidou system;
s13, recording a sending time stamp corresponding to the service data;
the S2 comprises the following steps:
s21, receiving Beidou standard time service data according to a preset period, acquiring regional time of a concentrator, judging whether the Beidou standard time service data is consistent with the regional time, and if not, updating the regional time of the concentrator according to the Beidou standard time service data to obtain standard time;
s22, judging whether the concentrator receives the service data and the sending time stamp, if so, recording the receiving time stamp of the service data according to the standard time.
2. The time correction method based on power grid multi-source data fusion according to claim 1, wherein the S3 comprises:
s31, packaging the service data according to the sending time stamp and the receiving time stamp, matching the packaged service data with a preset data model, establishing index files among a plurality of service data systems, generating a grid model containing the connection relation of the plurality of power grid devices according to the index files, and obtaining a grid model layer;
s32, dividing the service data into a plurality of groups of time data according to the sending time stamp and the receiving time stamp to obtain a time data layer;
and S33, with the map as a basic map layer, superposing the time data map layer and the net rack model map layer on the basic map layer to obtain an integrated view of the service data.
3. The time correction method based on power grid multi-source data fusion according to claim 2, wherein the S4 comprises:
s41, receiving the starting time and the ending time of the query data to obtain a preset time period;
s42, inquiring time data in the preset time period based on the integrated view, returning to the grid model layer if the time data layer has unresponsive power grid equipment, and marking the power grid equipment on the grid model layer;
s43, acquiring service data of the power grid equipment according to the grid model layer, judging whether the working state of the power grid equipment is normal or not according to the service data, if not, sending alarm information, and returning preset power grid equipment information.
4. A time correction terminal based on power grid multi-source data fusion comprises a memory, a processor and a computer program which is stored on the memory and runs on the processor, and is characterized in that the processor executes the computer program to realize the following steps:
s1, acquiring service data of power grid equipment, and recording a sending timestamp of the service data based on a time service function of a Beidou system;
s2, judging whether the concentrator receives the service data or not, and if so, recording a receiving timestamp of the service data based on the time service function of the Beidou system;
s3, packaging the service data according to the sending time stamp and the receiving time stamp to perform multi-source data fusion, and constructing an integrated view of the service data by taking a map as a carrier;
s4, inquiring the service data in a preset time period based on the integrated view, and if the integrated view has unresponsive power grid equipment, sending alarm information and returning preset power grid equipment information;
s11, acquiring service data of a plurality of power grid devices, wherein the service data come from a plurality of service data systems;
s12, synchronizing the time of the plurality of service data systems based on the time service function of the Beidou system;
s13, recording a sending time stamp corresponding to the service data;
the S2 comprises the following steps:
s21, receiving Beidou standard time service data according to a preset period, acquiring regional time of a concentrator, judging whether the Beidou standard time service data is consistent with the regional time, and if not, updating the regional time of the concentrator according to the Beidou standard time service data to obtain standard time;
and S22, judging whether the concentrator receives the service data and the sending time stamp, if so, recording the receiving time stamp of the service data according to the standard time.
5. The time correction terminal based on power grid multi-source data fusion of claim 4, wherein the S3 comprises:
s31, packaging the service data according to the sending time stamp and the receiving time stamp, matching the packaged service data with a preset data model, establishing index files among a plurality of service data systems, generating a grid model containing the connection relation of the plurality of power grid devices according to the index files, and obtaining a grid model layer;
s32, dividing the service data into a plurality of groups of time data according to the sending time stamp and the receiving time stamp to obtain a time data layer;
and S33, with the map as a basic map layer, superposing the time data map layer and the net rack model map layer on the basic map layer to obtain an integrated view of the service data.
6. The time correction terminal based on power grid multi-source data fusion of claim 5, wherein the S4 comprises:
s41, receiving the starting time and the ending time of the query data to obtain a preset time period;
s42, inquiring time data in the preset time period based on the integrated view, returning to the grid model layer if the time data layer has unresponsive power grid equipment, and marking the power grid equipment on the grid model layer;
s43, acquiring service data of the power grid equipment according to the grid model layer, judging whether the working state of the power grid equipment is normal or not according to the service data, if not, sending alarm information, and returning preset power grid equipment information.
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