CN112817998A - Method and system for automatically comparing and synchronizing data of hydropower station - Google Patents
Method and system for automatically comparing and synchronizing data of hydropower station Download PDFInfo
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- CN112817998A CN112817998A CN202110207427.9A CN202110207427A CN112817998A CN 112817998 A CN112817998 A CN 112817998A CN 202110207427 A CN202110207427 A CN 202110207427A CN 112817998 A CN112817998 A CN 112817998A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2365—Ensuring data consistency and integrity
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
- G06F11/1464—Management of the backup or restore process for networked environments
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3065—Monitoring arrangements determined by the means or processing involved in reporting the monitored data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
Abstract
The invention provides a method and a system for automatically comparing and synchronizing hydropower station data, wherein the method comprises the following steps: acquiring a node synchronization request; the server exports corresponding database tables of the source node and one or more target nodes in a monitoring system database; acquiring metadata of a monitoring system database corresponding to a source node and a target node based on a database table; comparing the metadata of the source node with the metadata of the target node to determine difference data between the metadata of the source node and the metadata of the target node; obtaining timestamp information and comparing the timestamp information with the timestamp information; acquiring data to be synchronized from metadata of a source node or a target node according to a comparison result, and generating a patch script; and sending the patch script to a target node or a source node in a self-defined protocol and message encryption mode to execute data synchronization operation. The invention can improve the data comparison and synchronization level, the operation efficiency of related systems, the accuracy and the consistency of data and the effectiveness of resource use.
Description
Technical Field
The invention relates to the technical field of computer database synchronization, in particular to a method and a system for automatically comparing and synchronizing hydropower station data.
Background
In actual operation and maintenance of a hydropower station computer monitoring system, files such as a database, a picture, a report form, a communication point table and the like are required to be modified frequently. After the files are modified, on one hand, relevant modification records do not exist, and on the other hand, maintenance personnel are required to manually input instructions to synchronize to each node one by one. If the synchronization is incorrect, the problems of ineffective function modification, incorrect alarm or incorrect numerical value display and the like can be caused, and even malposition and other accidents can be caused in severe cases. Not only work efficiency is low, and the risk is high moreover. Meanwhile, according to the requirement of secondary security, corresponding ftp service, rlogin service and the like in the computer monitoring system are required to be closed, so that maintenance work such as manual file synchronization and the like cannot be implemented.
Therefore, a method for automatically comparing and synchronizing databases is urgently needed to realize data comparison and synchronization functions among different nodes in a more efficient manner on the premise of ensuring data transmission safety and avoiding using a communication means forbidden by a safety protection rule of a power monitoring system.
Disclosure of Invention
The invention aims to solve the problems of complex data synchronization operation and high error rate of data file synchronization in the prior art, and provides a method and a system for automatically comparing and synchronizing hydropower station data, which can ensure the data transmission safety, simplify the data synchronization operation steps and have lower error rate.
The embodiment of the invention is realized by the following technical scheme: the method for automatically comparing and synchronizing the hydropower station data comprises the following steps:
acquiring a node synchronization request of a client, wherein the request at least comprises an identifier for mapping the relationship between the node and a certain database table in a monitoring system database;
distributing synchronization priority to the nodes according to the identification, and mapping the identification to a synchronization queue of a corresponding server side for synchronization;
the server derives corresponding database tables of the source node and one or more target nodes in a monitoring system database according to the identification;
acquiring metadata of a monitoring system database corresponding to the source node and the target node based on the database table;
comparing the metadata of the source node and the metadata of the target node one by one, and determining difference data between the metadata of the source node and the metadata of the target node;
performing data synchronization operation based on the timestamp information in the difference data, specifically including:
according to the difference data, obtaining timestamp information and comparing the timestamp information with the timestamp information;
acquiring data to be synchronized from metadata of the source node or the target node according to the comparison result of the timestamp information, and generating a patch script;
and sending the patch script to the target node or the source node in a self-defined protocol and message encryption mode, and executing data synchronization operation based on the patch script.
According to a preferred embodiment, the obtaining of the node synchronization request of the client includes:
displaying all nodes capable of carrying out data synchronization on a client for selection by a user;
reading the selection information of the user, determining the nodes needing data synchronization in the nodes capable of performing data synchronization according to the selection information, wherein,
the nodes capable of performing data synchronization are normally operating nodes.
According to a preferred embodiment, the data synchronization operation comprises:
obtaining the encrypted patch script through a custom protocol and decoding the patch script;
verifying the validity of the decoded patch script; if the source node or the target node is legal, acquiring data to be synchronized based on the decoded patch script to replace original metadata of the source node or the target node; if the patch script is illegal, triggering the node synchronization request again until the obtained patch script is legal information;
performing secondary comparison on the metadata of the source node and the metadata of the target node, and verifying the synchronization validity;
if the comparison result shows that the data are consistent, ending the data synchronization operation; if the comparison result shows that.
According to a preferred embodiment, the step of deriving, by the server, corresponding database tables of the source node and the one or more target nodes in the monitoring system database according to the identifier includes:
and receiving a node synchronization request and downloading a database table later than a first time from the server based on the information acquired by the identifier, wherein the first time is the last time when the server completes data synchronization operation.
According to a preferred embodiment, the comparing the metadata of the source node and the metadata of the target node item by item, and determining the difference data between the two includes:
comparing the metadata of the source node and the metadata of the target node one by one, and outputting the difference data to a client human-computer interface according to a preset format when the comparison result shows that the difference data exists.
According to a preferred embodiment, if a new database table is generated after data synchronization operation is performed, synchronous data is recorded, a data synchronization log is generated according to the synchronous data, and the data synchronization log is output to a client man-machine interface according to a preset format.
The invention also provides a hydropower station data automatic comparison and synchronization system applying the hydropower station data automatic comparison and synchronization method, which comprises a server and a client, wherein the server is connected with the client and used for receiving and processing data comparison and synchronization requests, and the server comprises:
a request receiving module, configured to obtain a node synchronization request from a client, where the request at least includes an identifier for mapping a relationship between the node and a certain database table in a monitoring system database;
the data writing module is respectively connected with the request receiving module and the monitoring system and used for deriving a corresponding database table in a monitoring system database according to the data request information;
the data comparison module is connected with the data writing module and is used for comparing the metadata of the source node and the metadata of the target node one by one and determining difference data between the metadata of the source node and the metadata of the target node;
the first data file writing module is connected with the data comparison module and used for sending the patch script to the target node or the source node in a self-defined protocol and message encryption mode;
and the data synchronization module is used for executing data synchronization operation based on the patch script.
According to a preferred embodiment, the client comprises a human-machine interface and an interaction module,
the human-computer interface is respectively connected with the data comparison module and the data synchronization module and is used for displaying a node selection list, a data comparison result and a data synchronization log;
the interactive module is used for carrying out information transmission with the server and establishing TCP connection between the client and the server.
According to a preferred embodiment, the server further includes a data backup module, where the data backup module is configured to backup a second data file of the target node to the source node directory; the human-computer interface is also connected with the data backup module and used for displaying a data backup log.
According to a preferred embodiment, the system further comprises a triggering module, wherein the triggering module is respectively connected with the data synchronization module and the data comparison module and is used for triggering the data synchronization module and the data comparison module;
the trigger module comprises a manual trigger module and an automatic trigger module, and the manual trigger module is used for manually clicking comparison setting or synchronous setting;
the automatic triggering module is used for automatically triggering the data synchronization module and the data comparison module. .
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects: compared with the prior art, the method and the system for automatically comparing and synchronizing the hydropower station data can improve the data comparison and synchronization level and the operation efficiency of related systems, ensure the accuracy and consistency of the data of the related systems, avoid the problems of incorrect alarm or incorrect numerical value display, misplacement of control commands and the like caused by inconsistent data, and improve the practical effectiveness of resources; the invention adopts a private protocol, encryption transmission and an optional communication port, has higher data transmission safety, and can avoid the inconvenience caused by the requirement of forbidding of general tool software due to security loopholes and the like.
Drawings
FIG. 1 is a flow chart of the steps of a method of automatic comparison and synchronization of hydropower station data according to the invention;
fig. 2 is a block diagram of the automatic comparison and synchronization system for hydropower stations according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
Referring to fig. 1, the method for automatically comparing and synchronizing data of a hydropower station according to an embodiment of the present invention mainly includes the following steps:
acquiring a node synchronization request of a client, wherein the request at least comprises an identifier for mapping the relationship between the node and a certain database table in a monitoring system database; in this embodiment, the mode of obtaining the node synchronization request is to select a node to be synchronized on the client according to the selection of the client, and the maintenance staff may select one or more target nodes from the nodes capable of performing data synchronization displayed on the client, where the node capable of performing data synchronization is a node that operates normally, and a node that does not operate or has a node network failure does not participate in the data synchronization operation in this embodiment.
Further, after acquiring a node synchronization request, the server derives corresponding database tables of the source node and one or more target nodes in the monitoring system database according to the identifier; the method specifically comprises the following steps: and receiving a node synchronization request and downloading a database table later than a first time from the server based on the information acquired by the identifier, wherein the first time is the last time when the server completes data synchronization operation. So that the obtained data file is the latest data file.
Furthermore, after a node synchronization request is acquired, a synchronization priority is distributed to the node according to the identifier, and the identifier is mapped to a synchronization queue of a corresponding server for synchronization, so that the data comparison and synchronization of a plurality of target nodes can be supported, and the situations of data loss and the like caused by simultaneous operation are avoided.
The server derives corresponding database tables of the source node and one or more target nodes in a monitoring system database according to the identification;
acquiring metadata of a monitoring system database corresponding to the source node and the target node based on the database table; comparing the metadata of the source node and the metadata of the target node one by one, and determining difference data between the metadata of the source node and the metadata of the target node; the method specifically comprises the following steps: comparing the metadata of the source node and the metadata of the target node one by one, and outputting the difference data to a client human-computer interface according to a preset format when the comparison result shows that the difference data exists.
Performing data synchronization operation based on the timestamp information in the difference data, specifically including: according to the difference data, obtaining timestamp information and comparing the timestamp information with the timestamp information; acquiring data to be synchronized from metadata of the source node or the target node according to the comparison result of the timestamp information, and generating a patch script; and sending the patch script to the target node or the source node in a self-defined protocol and message encryption mode, and executing data synchronization operation based on the patch script.
Specifically, the data synchronization operation includes the following steps:
obtaining the encrypted patch script through a custom protocol and decoding the patch script; verifying the validity of the decoded patch script; if the source node or the target node is legal, acquiring data to be synchronized based on the decoded patch script to replace original metadata of the source node or the target node; if the patch script is illegal, triggering the node synchronization request again until the obtained patch script is legal information; performing secondary comparison on the metadata of the source node and the metadata of the target node, and verifying the synchronization validity; if the comparison result shows that the data are consistent, ending the data synchronization operation; if the comparison result shows that.
In addition, in order to more intuitively display the synchronization information, if a new database table is generated after data synchronization operation is performed, the synchronized data is recorded, a data synchronization log is generated according to the synchronized data, and the data synchronization log is output to a client human-computer interface according to a preset format. Optionally, if the synchronization fails, the synchronization failure information is also output to the client-side human-computer interface according to a preset format.
The method provided by the embodiment further comprises the following steps: and if a new database table is generated after the data synchronization operation is executed, recording the synchronized data, generating a data synchronization log according to the synchronized data, and outputting the data synchronization log to a client human-computer interface according to a preset format.
Referring to fig. 2, the database automatic comparison and synchronization system according to the embodiment of the present invention adopts a C/S architecture design, and includes a server and a client, wherein the server is connected to the client for receiving and processing data comparison and synchronization requests, and for receiving and processing data comparison and synchronization requests; the server is deployed in all monitoring system upper computer nodes, and the server is responsible for acquiring all key data of the node, such as database files, picture files, report files, communication point table files and the like; and the client is deployed at a node for performing system maintenance operation, and a system node list is obtained by reading the node configuration file of the monitoring system.
Specifically, the server includes: a request receiving module, configured to obtain a node synchronization request from a client, where the request at least includes an identifier for mapping a relationship between the node and a certain database table in a monitoring system database; the data writing module is respectively connected with the request receiving module and the monitoring system and used for deriving a corresponding database table in a monitoring system database according to the data request information; the data comparison module is connected with the data writing module and is used for comparing the metadata of the source node and the metadata of the target node one by one and determining difference data between the metadata of the source node and the metadata of the target node; the first data file writing module is connected with the data comparison module and used for sending the patch script to the target node or the source node in a self-defined protocol and message encryption mode; and the data synchronization module is used for executing data synchronization operation based on the patch script. In an embodiment, the system is deployed in a monitoring system directory, and the monitoring system includes a whole-plant monitoring system of a hydropower station, a hydroelectric generating set monitoring system, a switching station monitoring system, a public system, a heating and ventilating system, a dam system, a water machine system, a set auxiliary machine communication system, a shared auxiliary machine communication system, a dam auxiliary machine communication system and the like.
In the embodiment, through a private protocol, encrypted transmission and an optional communication port, the data transmission security is higher, and the inconvenience caused by the requirement of forbidding of general tool software due to security holes and the like can be avoided; optionally, the communication port may be customized, and the default of the embodiment is 60000 and 60001.
Specifically, the client comprises a human-computer interface and an interaction module, wherein the human-computer interface is respectively connected with the data comparison module and the data synchronization module and is used for displaying a node selection list, a data comparison result and a data synchronization log; the interactive module is used for carrying out information transmission with the server and establishing TCP connection between the client and the server.
Further, the server also comprises a data backup module, wherein the data backup module is used for backing up a second data file of the target node to the source node directory; the human-computer interface is also connected with the data backup module and used for displaying a data backup log.
Furthermore, the system also comprises a triggering module, wherein the triggering module is respectively connected with the data synchronization module and the data comparison module and is used for triggering the data synchronization module and the data comparison module; the trigger module comprises a manual trigger module and an automatic trigger module, and the manual trigger module is used for manually clicking comparison setting or synchronous setting; the automatic triggering module is used for automatically triggering the data synchronization module and the data comparison module.
In conclusion, the method and the system for automatically comparing and synchronizing the hydropower station data can improve the data comparison and synchronization level and the operation efficiency of related systems, ensure the accuracy and consistency of the data of the related systems, avoid the problems of incorrect alarm or incorrect numerical value display, misplacement control and the like caused by inconsistent data, and improve the practical effectiveness of resources; the invention adopts a private protocol, encryption transmission and an optional communication port, has higher data transmission safety, and can avoid the inconvenience caused by the requirement of forbidding of general tool software due to security loopholes and the like.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The method for automatically comparing and synchronizing the hydropower station data is characterized by comprising the following steps of:
acquiring a node synchronization request of a client, wherein the request at least comprises an identifier for mapping the relationship between the node and a certain database table in a monitoring system database;
distributing synchronization priority to the nodes according to the identification, and mapping the identification to a synchronization queue of a corresponding server side for synchronization;
the server derives corresponding database tables of the source node and one or more target nodes in a monitoring system database according to the identification;
acquiring metadata of a monitoring system database corresponding to the source node and the target node based on the database table;
comparing the metadata of the source node and the metadata of the target node one by one, and determining difference data between the metadata of the source node and the metadata of the target node;
performing data synchronization operation based on the timestamp information in the difference data, specifically including:
according to the difference data, obtaining timestamp information and comparing the timestamp information with the timestamp information;
acquiring data to be synchronized from metadata of the source node or the target node according to the comparison result of the timestamp information, and generating a patch script;
and sending the patch script to the target node or the source node in a self-defined protocol and message encryption mode, and executing data synchronization operation based on the patch script.
2. The method for automated comparison and synchronization of hydroelectric data according to claim 1,
the acquiring of the node synchronization request of the client comprises:
displaying all nodes capable of carrying out data synchronization on a client for selection by a user;
reading the selection information of the user, determining the nodes needing data synchronization in the nodes capable of performing data synchronization according to the selection information, wherein,
the nodes capable of performing data synchronization are normally operating nodes.
3. The method for automated comparison and synchronization of hydroelectric data according to claim 2,
the data synchronization operation includes:
obtaining the encrypted patch script through a custom protocol and decoding the patch script;
verifying the validity of the decoded patch script; if the source node or the target node is legal, acquiring data to be synchronized based on the decoded patch script to replace original metadata of the source node or the target node; if the patch script is illegal, triggering the node synchronization request again until the obtained patch script is legal information;
performing secondary comparison on the metadata of the source node and the metadata of the target node, and verifying the synchronization validity;
if the comparison result shows that the data are consistent, ending the data synchronization operation; if the comparison result shows that.
4. The method for automated comparison and synchronization of hydroelectric data according to claim 3,
the server derives a corresponding database table of the source node and one or more target nodes in a monitoring system database according to the identifier, and the database table comprises:
and receiving a node synchronization request and downloading a database table later than a first time from the server based on the information acquired by the identifier, wherein the first time is the last time when the server completes data synchronization operation.
5. The method for automated comparison and synchronization of hydroelectric data according to claim 1,
the comparing the metadata of the source node and the metadata of the target node one by one, and determining difference data between the two includes:
comparing the metadata of the source node and the metadata of the target node one by one, and outputting the difference data to a client human-computer interface according to a preset format when the comparison result shows that the difference data exists.
6. The method for automated comparison and synchronization of hydroelectric data according to claim 4 further comprising:
and if a new database table is generated after the data synchronization operation is executed, recording the synchronized data, generating a data synchronization log according to the synchronized data, and outputting the data synchronization log to a client human-computer interface according to a preset format.
7. The automatic hydropower station data comparison and synchronization system applying the automatic hydropower station data comparison and synchronization method according to any one of claims 1-6, comprising a server and a client, wherein the server is connected with the client and used for receiving and processing data comparison and synchronization requests, and the server comprises:
a request receiving module, configured to obtain a node synchronization request from a client, where the request at least includes an identifier for mapping a relationship between the node and a certain database table in a monitoring system database;
the data writing module is respectively connected with the request receiving module and the monitoring system and used for deriving a corresponding database table in a monitoring system database according to the data request information;
the data comparison module is connected with the data writing module and is used for comparing the metadata of the source node and the metadata of the target node one by one and determining difference data between the metadata of the source node and the metadata of the target node;
the first data file writing module is connected with the data comparison module and used for sending the patch script to the target node or the source node in a self-defined protocol and message encryption mode;
and the data synchronization module is used for executing data synchronization operation based on the patch script.
8. The automated hydropower station data comparison and synchronization system of claim 7, wherein the client comprises a human-machine interface and an interaction module,
the human-computer interface is respectively connected with the data comparison module and the data synchronization module and is used for displaying a node selection list, a data comparison result and a data synchronization log;
the interactive module is used for carrying out information transmission with the server and establishing TCP connection between the client and the server.
9. The automated hydropower station data comparison and synchronization system of claim 8,
the server also comprises a data backup module, wherein the data backup module is used for backing up a second data file of the target node to the source node directory; the human-computer interface is also connected with the data backup module and used for displaying a data backup log.
10. The automatic comparison and synchronization system for hydropower station data according to claim 9, further comprising a triggering module, wherein the triggering module is connected to the data synchronization module and the data comparison module, respectively, for triggering the data synchronization module and the data comparison module;
the trigger module comprises a manual trigger module and an automatic trigger module, and the manual trigger module is used for manually clicking comparison setting or synchronous setting;
the automatic triggering module is used for automatically triggering the data synchronization module and the data comparison module.
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