CN114422408A - Transformer substation monitoring method and device, computer equipment and storage medium - Google Patents
Transformer substation monitoring method and device, computer equipment and storage medium Download PDFInfo
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Abstract
The application relates to a transformer substation monitoring method, a transformer substation monitoring device, a computer device, a storage medium and a computer program product. The method comprises the following steps: monitoring the communication connection condition between each substation and the monitoring main station; if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation; updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation; and recording the event information generated in the first substation according to the target timestamp. According to the method and the device, the situation that the data uploaded to the monitoring main station is lost in time can be avoided after the substation and the monitoring main station are disconnected in communication, and the monitoring efficiency of the substation can be improved.
Description
Technical Field
The application relates to the technical field of transformer substations, in particular to a transformer substation monitoring method and device, computer equipment and a storage medium.
Background
With the rapid development of computer technology and network communication technology, the automation construction of power systems has become more and more perfect, and more power systems also adopt networks for communication. At present, in an electric power system, a dispatching master station is usually connected with a plurality of sub-substations by adopting an ethernet, and network access of the sub-substations is completed by locally establishing database variables and system graphs which are the same as those of the sub-substations, so that the whole electric power system is monitored.
The transformer substation auxiliary monitoring system is one of important technical means necessary for power grid intellectualization and safety production, and provides important guarantee for safe and stable operation of a power grid. Along with popularization of power grid operation modes such as intelligent transformer substations, unattended transformer substations, centralized transformer substation operation monitoring and the like, the importance of the auxiliary transformer substation monitoring system is more prominent. At present, an auxiliary monitoring system in a single transformer substation exchanges information in a master-slave mode, when a certain sub-transformer substation in the transformer substation breaks down, stored data are not timely sent to a main transformer substation, and the main transformer substation can only obtain related information of the transformer substation through manual analysis or correlation of monitoring information among other sub-transformer substations, so that the monitoring efficiency of the main transformer substation is seriously influenced.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a substation monitoring method, a substation monitoring device, a computer readable storage medium, and a computer program product, which can improve monitoring efficiency of a main substation.
In a first aspect, the application provides a substation monitoring method. The method comprises the following steps:
monitoring the communication connection condition between each substation and the monitoring main station;
if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation;
updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation;
and recording the event information generated in the first substation according to the target timestamp.
In one embodiment, the updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain the target timestamp of the first substation includes:
acquiring a first moment when the second substation sends time synchronization information to the first substation and a second moment when the first substation receives the time synchronization information;
determining the clock offset of the first substation according to the second time and the first time;
and adjusting the current time of the first substation according to the clock offset to obtain a target timestamp of the first substation.
In one embodiment, the adjusting the current time of the first substation according to the clock offset to obtain the target timestamp of the first substation includes:
and taking the difference between the current time of the first substation and the clock offset as a target timestamp of the first substation.
In one embodiment, the method further comprises:
acquiring a third moment when the first substation receives the tracking information sent by the second substation; the time when the second substation sends the tracking information is later than the first time by a preset time length;
and acquiring the current time of the first substation according to the third time, wherein the current time of the first substation is later than the third time.
In one embodiment, the method further comprises:
when the number of the second slave stations is plural, the plural second slave stations transmit time synchronization information to the first slave station;
a second slave station corresponding to the time synchronization information received earliest by the first slave station is used as a target second slave station;
the updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain the target timestamp of the first substation includes:
and updating the timestamp of the first substation based on the timestamp of the target second substation to obtain the target timestamp of the first substation.
In one embodiment, after the updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain the target timestamp of the first substation, the method further includes:
changing the state of the first substation to a compliant state;
and when detecting that the first substation does not receive the time synchronization information transmitted by the second substation for a preset number of times, changing the state of the first substation into a listening state, and returning to the step of transmitting the time synchronization information to the first substation by the second substation.
In a second aspect, the application further provides a transformer substation monitoring device. The device comprises:
the communication monitoring module is used for monitoring the communication connection condition between each substation and the monitoring main station;
the time synchronization module is used for sending time synchronization information to the first substation by the second substation if the first substation is disconnected from the monitoring master station; wherein the second substation is in communicative connection with the first substation;
the time updating module is used for updating the time stamp of the first substation based on the time stamp of the second substation according to the time synchronization information to obtain a target time stamp of the first substation;
and the event recording module is used for recording the event information generated in the first substation according to the target timestamp.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the following steps when executing the computer program:
monitoring the communication connection condition between each substation and the monitoring main station;
if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation;
updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation;
and recording the event information generated in the first substation according to the target timestamp.
In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:
monitoring the communication connection condition between each substation and the monitoring main station;
if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation;
updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation;
and recording the event information generated in the first substation according to the target timestamp.
In a fifth aspect, the present application further provides a computer program product. The computer program product comprising a computer program which when executed by a processor performs the steps of:
monitoring the communication connection condition between each substation and the monitoring main station;
if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation;
updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation;
and recording the event information generated in the first substation according to the target timestamp.
According to the transformer substation monitoring method, the transformer substation monitoring device, the computer equipment, the storage medium and the computer program product, the communication connection condition between each substation and the monitoring main station is monitored; if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation; updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation; and recording the event information generated in the first substation according to the target timestamp. This application is through the communication connection condition of monitoring sub-station and monitoring main website, when sub-station and main website disconnection communication, other sub-stations then send time synchronization information to this sub-station, and the timestamp of the second sub-station that corresponds through the time synchronization information that this sub-station received updates this sub-station, make this sub-station use the timestamp unanimous with the second sub-station to carry out incident record, prevent behind this sub-station and the disconnection communication connection of monitoring main website, the condition of data loss who reaches the monitoring main website is not uploaded in time, the monitoring efficiency of transformer substation has been improved.
Drawings
FIG. 1 is a diagram of an application environment of a substation monitoring method in one embodiment;
FIG. 2 is a schematic flow diagram of a substation monitoring method in one embodiment;
FIG. 3 is a flow chart illustrating step 206 in one embodiment;
FIG. 4 is a schematic diagram of target timestamp determination by a first substation in one embodiment;
FIG. 5 is a schematic diagram of the first substation determining the current time of day in one embodiment;
fig. 6 is a schematic flow chart of a substation monitoring method in another embodiment;
fig. 7 is a block diagram of the structure of a substation monitoring device in one embodiment;
FIG. 8 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The transformer substation monitoring method provided by the embodiment of the application can be applied to the application environment shown in fig. 1. The monitoring main station 104 is in communication connection with the plurality of substations 106, the substations 106 communicate with the substations 106 through the edge computing gateway 108, the monitoring main station 104 can be in communication connection with the monitoring terminal 102, the monitoring terminal 102 can be but not limited to various personal computers, laptops, smart phones, tablet computers, internet of things equipment and portable wearable equipment, and the internet of things equipment can be smart speakers, smart televisions, smart air conditioners, smart vehicle-mounted equipment and the like. The portable wearable device can be a smart watch, a smart bracelet, a head-mounted device, and the like. The edge computing gateway 108 monitors the communication connection between each substation 106 and the monitoring master station 104, and if the first substation is disconnected from the monitoring master station 104, the second substation sends time synchronization information to the first substation, wherein the second substation is in communication connection with the first substation; updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation; event information generated in the first substation is recorded according to the target timestamp. An Edge-Gateway (Edge-Gateway)108, also called an internet of things Edge-Gateway, is an industrial intelligent Gateway that can run functions of local computing, message communication, data caching, etc. on a device, and can implement local linkage and data processing and analysis of the device without networking.
In one embodiment, as shown in fig. 2, a substation monitoring method is provided, which is described by taking the method as an example for being applied to the edge computing gateway in fig. 1, and includes the following steps:
A substation, i.e. a sub-substation. In the transformer substation monitoring system, a monitoring main station is in communication connection with a plurality of sub-transformer substations, a plurality of sub-substations transmit various transformer substation data generated in corresponding transformer substations to the monitoring main station, the monitoring main station analyzes and calculates the corresponding transformer substation data uniformly, the monitoring main station unifies the time of each sub-substation, and each sub-substation transmits the corresponding data by using the same time mechanism. Therefore, when communication is disconnected between a substation and the substation master station, the substation may not have accurate time, that is, there may be problems of time delay or time stop, etc., which causes great troubles for the monitoring master station to analyze data.
In this embodiment, the communication connection between each substation and the monitoring master station is monitored by the edge computing gateway, and if it is monitored that one substation is disconnected from the substation master station, the time synchronization mechanism is immediately started. Time synchronization is a process of providing a uniform time scale for a substation system through some operations of a local clock.
In an alternative embodiment, each substation is in communication with the monitoring master station, and the substations are connected by an edge computing gateway. One substation may be correspondingly connected with one edge computing gateway, or one edge computing gateway may be simultaneously connected with a plurality of substations.
In the substation monitoring system in this embodiment, at least one first substation and one second substation exist, and if the first substation and the monitoring master station are disconnected from each other, that is, it is considered that the time of the first substation may not be synchronized with the monitoring master station, the second substation transmits time synchronization information to the first substation, where the time synchronization information includes related information of the second substation, such as a name or a number of the second substation. The first sub-station and the second sub-station are in communication connection, and the number of the first sub-station and the number of the second sub-stations can be one or more. For example, a monitoring master station is connected in a ring with a plurality of substations, and then the substations adjacent to and connected to the first substation are all the second substations.
In an alternative embodiment, the first substation and the second substation may be called peer-to-peer substations, i.e. substations at the same level that perform similar functions, called peer-to-peer substations. In a substation monitoring system, there is at least one substation and a corresponding peer-to-peer substation. Optionally, the selection of the peer-to-peer substation may be determined according to an area or a distance, where the area may be a physical area or a network area, the physical area may be a geographic location, and the network area may be a divided grid area or an area of the same network configuration. For example, substations within a preset distance may be selected as peer substations; or selecting a transformer substation belonging to a certain physical area as a peer-to-peer transformer substation; and substations belonging to the same network segment or the same sub-network can be selected as peer-to-peer substations.
In an optional embodiment, when one edge computing gateway connects multiple substations simultaneously, the second substation sends the synchronization information to the second edge computing gateway connected to the second substation, and then the second edge computing gateway sends the synchronization information to the first edge computing gateway connected to the first substation, and the first edge computing gateway sends the synchronization information to the corresponding processing module in the first substation. In this embodiment, the first substation and the second substation are connected to different edge computing gateways respectively, but still belong to the peer-to-peer substation, that is, the selection of the peer-to-peer substation is not affected by the number and connection settings of the edge computing gateways.
And step 206, updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation.
And updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information sent by the second substation to the first substation, so as to obtain the target timestamp of the first substation. That is, the timestamp of the first substation is synchronized to the timestamp of the second substation, so that the timestamp involved in the operation of the first substation is the same as the timestamp of the second substation, i.e. is consistent with the timestamp uniformly set in the monitoring system.
And the first substation records the time information generated in the first substation according to the updated target timestamp, wherein the event information comprises sensor data, abnormal electric signals, video monitoring data and the like generated in the substation. The first substation records the generated event information according to the target timestamp, can upload the event information to the monitoring master station for processing after the first substation restores the communication with the monitoring master station, and can also transmit data corresponding to the event information to the second substation in real time and upload the data to the monitoring master station for processing by the second substation.
In the transformer substation monitoring method, the communication connection condition between each substation and the monitoring master station is monitored; if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; the second substation is in communication connection with the first substation; updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation; event information generated in the first substation is recorded according to the target timestamp. This application is through the communication connection condition of monitoring sub-station and monitoring main website, when sub-station and main website disconnection communication, other sub-stations then send time synchronization information to this sub-station, and the timestamp of the second sub-station that corresponds through the time synchronization information that this sub-station received updates this sub-station, make this sub-station use the timestamp unanimous with the second sub-station to carry out incident record, prevent behind this sub-station and the disconnection communication connection of monitoring main website, the condition of data loss who reaches the monitoring main website is not uploaded in time, the monitoring efficiency of transformer substation has been improved.
In one embodiment, as shown in fig. 3, the step 206 of updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain the target timestamp of the first substation includes:
And step 306, adjusting the current time of the first substation according to the clock offset to obtain a target timestamp of the first substation.
In this embodiment, the edge computing gateway obtains a first time when the second substation sends the time synchronization information to the first substation and a second time when the first substation receives the time synchronization information, determines a clock offset of the first substation according to the first time and the second time, where the clock offset is an offset between a current time and a target time, and adjusts the current time of the first substation according to the clock offset to obtain a target timestamp of the first substation. The time synchronization information sent by the second substation to the first substation includes a first time when the second substation sends the time synchronization information to the first substation. At this time, the current time of the first slave station is later than the second time.
In one possible implementation manner, as shown in fig. 4, the step 206 of updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain the target timestamp of the first substation includes:
assuming that the first substation is a substation B, the second substation is a substation a, the first time when the substation a sends the time synchronization information to the substation B is t1, wherein the time synchronization information includes information of the first time t1, the second time when the substation B receives the time synchronization information is t2, the clock offset of the substation B can be determined according to the difference between t1 and t2, and the current time of the substation B can be adjusted according to the clock offset to obtain the target timestamp of the substation B.
In one embodiment, the step 306 of adjusting the current time of the first substation according to the clock offset to obtain the target timestamp of the first substation comprises:
and taking the difference between the current time of the first substation and the clock offset as a target timestamp of the first substation.
Based on the further description in the above embodiment, if the clock offset is Δ t — t2-t1, the difference between the current time of the first substation and Δ t is the target timestamp of the first substation.
In one embodiment, the substation monitoring method further includes:
acquiring a third moment when the first substation receives the tracking information sent by the second substation; the time when the second substation sends the tracking information is later than the first time by a preset time length;
and acquiring the current time of the first substation according to the third time, wherein the current time of the first substation is later than the third time.
In this embodiment, when the preset time period after the second slave station transmits the time synchronization information to the first slave station is reached, the tracking information is transmitted to the first slave station again, the time when the first slave station receives the tracking information transmitted by the second slave station is a third time, and the current time of the first slave station is obtained according to the third time, and the current time of the first slave station is later than the third time. As shown in fig. 5, this embodiment will be further explained using fig. 5. After the substation A sends the time synchronization information at the time t1 and after the preset time duration, namely t1+ the preset time duration, the tracking information is sent to the substation B, and the substation B receives the tracking information at the time t3, so that the current time of the substation B is later than t 3.
In one embodiment, as shown in fig. 6, the substation monitoring method further includes:
in step 602, when there are a plurality of second slave stations, the plurality of second slave stations transmit time synchronization information to the first slave station.
When each substation is correspondingly communicated with one edge computing gateway, the edge gateway corresponding to each substation monitors the communication connection condition between each substation and the monitoring main station, and when the first substation is disconnected from the monitoring main station, each second substation connected with the first substation sends time synchronization information to the first substation.
Step 604 is executed to set the second slave station corresponding to the time synchronization information received at the earliest timing by the first slave station as the target second slave station.
Since the distance and communication conditions between each second slave station and the first slave station are different, the time synchronization information transmitted by each second slave station to the first slave station is different in arrival time at the first slave station, and the second slave station corresponding to the time synchronization information received earliest by the first slave station is used as the target second slave station.
After receiving the time synchronization information sent by the target second substation, the first substation updates the timestamp of the first substation based on the timestamp of the target second substation, so that the target timestamp of the first substation can be obtained, and the event information generated in the first substation is recorded by the target timestamp.
In one embodiment, after updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information and obtaining the target timestamp of the first substation, the method further includes:
changing the state of the first substation to a compliant state;
and under the condition that the first substation does not receive the time synchronization information transmitted by the second substation for a preset number of times, changing the state of the first substation into a listening state, and returning to the step of transmitting the time synchronization information to the first substation by the second substation.
In this embodiment, the edge computing gateway, according to the time synchronization information, herein, refers to the second substation that sends the time synchronization information as a candidate second substation, updates the timestamp of the first substation based on the timestamp of the candidate second substation to obtain the target timestamp of the first substation, and then changes the state of the first substation into a compliant state, where the compliant state means that the first substation is already synchronized with the time of the candidate second substation, and the candidate second substation sends corresponding time synchronization information to the first substation according to the preset frequency, and the first substation does not receive the time synchronization information of other second substations except the candidate second substation; and if the first substation detects that the time synchronization information sent by the candidate second substation is not received continuously for the preset times, changing the state of the first substation into a listening state, wherein the listening state is a state ready for receiving the time synchronization information sent by the second substation, namely the first substation can receive the time synchronization information sent by other second substations besides the candidate second substation. For example, the candidate second slave station transmits time synchronization information to the first slave station at a predetermined frequency of 10 seconds/time, and when the first slave station does not receive the time synchronization information transmitted from the candidate second slave station after 30 seconds, that is, 3 times, the state of the first slave station is changed to the listening state, and the step of transmitting the time synchronization information from the second slave station to the first slave station is returned to execution.
It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
Based on the same inventive concept, the embodiment of the application also provides a transformer substation monitoring device for realizing the transformer substation monitoring method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so specific limitations in one or more transformer substation monitoring device embodiments provided below can be referred to the limitations on the transformer substation monitoring method in the foregoing, and details are not described herein again.
In one embodiment, as shown in fig. 7, there is provided a substation monitoring device comprising: a communication monitoring module 702, a time synchronization module 704, a time update module 706, and an event logging module 708, wherein:
a communication monitoring module 702, configured to monitor communication connection conditions between each substation and the monitoring master station;
a time synchronization module 704, configured to send time synchronization information to a first substation by a second substation if the first substation is disconnected from the monitoring master station; wherein the second substation is in communicative connection with the first substation;
a time updating module 706, configured to update the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information, so as to obtain a target timestamp of the first substation;
an event recording module 708, configured to record event information generated in the first substation according to the target timestamp.
In one embodiment, the time update module 706 is further configured to:
acquiring a first moment when the second substation sends time synchronization information to the first substation and a second moment when the first substation receives the time synchronization information;
determining the clock offset of the first substation according to the second time and the first time;
and adjusting the current time of the first substation according to the clock offset to obtain a target timestamp of the first substation.
In one embodiment, the time update module 706 is further configured to:
and taking the difference between the current time of the first substation and the clock offset as a target timestamp of the first substation.
In one embodiment, the substation monitoring device further comprises a time determination module configured to:
acquiring a third moment when the first substation receives the tracking information sent by the second substation; the time when the second substation sends the tracking information is later than the first time by a preset time length;
and acquiring the current time of the first substation according to the third time, wherein the current time of the first substation is later than the third time.
In one embodiment, the substation monitoring apparatus further comprises a target substation determination module for:
when the number of the second slave stations is plural, the plural second slave stations transmit time synchronization information to the first slave station;
a second slave station corresponding to the time synchronization information received earliest by the first slave station is used as a target second slave station;
a time update module 706 further configured to:
and updating the timestamp of the first substation based on the timestamp of the target second substation to obtain the target timestamp of the first substation.
In one embodiment, the substation monitoring apparatus further comprises a status management module for updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information, and after obtaining the target timestamp of the first substation,
changing the state of the first substation to a compliant state;
and under the condition that the first substation does not receive the time synchronization information transmitted by the second substation for a preset number of times, changing the state of the first substation into a listening state, and returning to the step of transmitting the time synchronization information to the first substation by the second substation.
All or part of the modules in the substation monitoring device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 8. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing substation event data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a substation monitoring method.
Those skilled in the art will appreciate that the architecture shown in fig. 8 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
monitoring the communication connection condition between each substation and the monitoring main station;
if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation;
updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation;
and recording the event information generated in the first substation according to the target timestamp.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
monitoring the communication connection condition between each substation and the monitoring main station;
if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation;
updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation;
and recording the event information generated in the first substation according to the target timestamp.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), Magnetic Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing based data processing logic devices, etc., without limitation.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A transformer substation monitoring method is characterized by comprising the following steps:
monitoring the communication connection condition between each substation and the monitoring main station;
if the first sub-station is disconnected with the monitoring main station, the second sub-station sends time synchronization information to the first sub-station; wherein the second substation is in communicative connection with the first substation;
updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain a target timestamp of the first substation;
and recording the event information generated in the first substation according to the target timestamp.
2. The method of claim 1, wherein said updating the timestamp of the first substation based on the timestamp of the second substation to obtain the target timestamp of the first substation according to the time synchronization information comprises:
acquiring a first moment when the second substation sends time synchronization information to the first substation and a second moment when the first substation receives the time synchronization information;
determining the clock offset of the first substation according to the second time and the first time;
and adjusting the current time of the first substation according to the clock offset to obtain a target timestamp of the first substation.
3. The method of claim 2, wherein said adjusting the current time of the first substation according to the clock offset to obtain the target timestamp of the first substation comprises:
and taking the difference between the current time of the first substation and the clock offset as a target timestamp of the first substation.
4. The method of claim 2, further comprising:
acquiring a third moment when the first substation receives the tracking information sent by the second substation; the time when the second substation sends the tracking information is later than the first time by a preset time length;
and acquiring the current time of the first substation according to the third time, wherein the current time of the first substation is later than the third time.
5. The method of any one of claims 1 to 4, further comprising:
when the number of the second slave stations is plural, the plural second slave stations transmit time synchronization information to the first slave station;
a second slave station corresponding to the time synchronization information received earliest by the first slave station is used as a target second slave station;
the updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain the target timestamp of the first substation includes:
and updating the timestamp of the first substation based on the timestamp of the target second substation to obtain the target timestamp of the first substation.
6. The method according to any of claims 1 to 4, wherein after updating the timestamp of the first substation based on the timestamp of the second substation according to the time synchronization information to obtain the target timestamp of the first substation, the method further comprises:
changing the state of the first substation to a compliant state;
and when detecting that the first substation does not receive the time synchronization information transmitted by the second substation for a preset number of times, changing the state of the first substation into a listening state, and returning to the step of transmitting the time synchronization information to the first substation by the second substation.
7. A substation monitoring device, the device comprising:
the communication monitoring module is used for monitoring the communication connection condition between each substation and the monitoring main station;
the time synchronization module is used for sending time synchronization information to the first substation by the second substation if the first substation is disconnected from the monitoring master station; wherein the second substation is in communicative connection with the first substation;
the time updating module is used for updating the time stamp of the first substation based on the time stamp of the second substation according to the time synchronization information to obtain a target time stamp of the first substation;
and the event recording module is used for recording the event information generated in the first substation according to the target timestamp.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 6.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 6 when executed by a processor.
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