CN108090165B - Method for acquiring map change difference based on embedded graph database - Google Patents
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Abstract
The invention discloses a method for acquiring map change difference based on an embedded map database, which comprises the following steps: establishing an original process map; establishing a new process map and comparing the process maps. Through the steps, when the process node in the power system changes, the change information of the map can be obtained in time, and meanwhile, the logic and data maps are compared and analyzed to find out the change point of the process node in the map.
Description
Technical Field
The invention belongs to the technical field of map difference acquisition methods, and particularly relates to an acquisition method of map change difference based on an embedded map database.
Background
The former national grid company director Liu Yao indicated in the work report of 2014: the data resources are used as strategic assets of the company, centralized management is enhanced, and information sharing of the whole company is realized. And data analysis is enhanced, and the application level and the commercial value of the data are improved. The discussion provides an important theoretical basis for constructing a data asset management prototype for the power enterprise and also indicates a direction for the power enterprise to enter a big data era process. The flow difference perception based on the embedded graph database is just an important ring of a data resource map, and can help enterprises to find changes of all business systems more accurately. And thus, the process specification more suitable for enterprise development is made according to the change. And abnormal processes can be discovered in time so as to analyze and process problems in time.
The power business process is a natural network topology structure. The process conditions in all the power systems can be clearly and definitely seen through the construction of the business process map. Through the association and integration of the business process and the data flow, whether the change of the logic process and the popular direction of the logic process are changed or not can be analyzed directly through the change of data in a business system. Thereby perceiving the business process.
In the prior art, the nodes of the power flow are not managed through a graph database. The relationship between each node and the bottom data table is not established, and when the table structure of the bottom service system is changed, the upper flow node cannot sense the change of the bottom, so that the dynamic sensing of the change of the flow map cannot be realized.
Disclosure of Invention
In view of the above, the present invention provides a method for obtaining a graph change difference based on an embedded graph database, which, according to the characteristics of the embedded graph database, stores a flow node in an electric power flow in a local disk in time when the flow node changes, and since the stored flow node is original data, the method can simultaneously compare data of a plurality of flow graphs at different periods to find out the difference, thereby obtaining the change of the flow node in the graph.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a method for acquiring map change difference based on an embedded map database comprises the following steps:
establishing an original process map: the electric power flow comprises a plurality of flow nodes, wherein the plurality of flow nodes establish a plurality of entity points in a graph database in a cypher language according to the relationship among the flow nodes, the pointing relationship among the entity points forms a plurality of edges, and the entity points and the edges form an original flow graph;
establishing a new process map: when a process node in the power process is changed, entity points mapped into the embedded graph database are changed, edges formed among the entity points are changed, and unchanged entity points, changed entity points, unchanged edges and changed edges form a new process graph;
and (3) storing the original process map and the new process map: respectively storing the original process map and the new process map into a local disk, and simultaneously recording information of process nodes in the original process map and information of process nodes in the new process map;
and (3) comparison of process maps: and comparing the new process map with the process node information in the original process map to find out difference process nodes and difference edges, so that the map change in the power process can be obtained.
Further, the process node includes related table information, and the related table information records information of a table in the power service data system corresponding to the process node.
Further, the process nodes further include at least one of a sub-process, a normal node, an abnormal node, a document node, an and or node, and a node or an end node.
Furthermore, the number of the power flows is several, and the several power flows form a power grid flow.
Further, the embedded graph database is a Neo4j embedded graph database.
Further, when the flow nodes are mapped to the graph database, cypher language is adopted for mapping.
Further, the step of storing the original process map and the new process map further comprises serializing the original process map and the new process map through embedded interfaces to form a topological graph of an original version and a topological graph of a new version.
Further, the step of comparing the process map specifically comprises: and comparing the information in the topological graph of the original version with the information in the topological graph of the new version to find out the difference process nodes and the difference edges.
Further, the difference process nodes include a new process node, a modified process node, and a deleted process node.
Further, the differential edges include newly added edges, modified edges and deleted edges.
The invention has the following beneficial effects:
in the invention, because the embedded graph database is adopted, the information of the original process nodes and the changed information of the process nodes can be stored in the local disk, when the graph change difference needs to be acquired, the data of the original node information is acquired, and the accuracy of the acquired difference information is higher.
Due to the characteristics of the embedded database, the graph spectrum is stored in the local disk, meanwhile, the information of the process node is recorded, and the graph spectrum data on the local disk can also be read and converted into the graph spectrum object. Thereby carrying out comparison and analysis of logic and data maps.
In the invention, data which changes at any time can be stored continuously, so that the change difference of a plurality of maps can be compared, and the accuracy is high.
Drawings
Fig. 1 is a schematic flow chart of a method for obtaining a map change difference based on an embedded graph database according to the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the embodiment.
Referring to fig. 1, the present invention provides a method for obtaining a map change difference based on an embedded graph database, which specifically comprises the following steps:
firstly, establishing an original process map: the electric power flow comprises a plurality of flow nodes, wherein the flow nodes establish related entity nodes in a graph database according to the relationship among the flow nodes through cypher language, the relationship among the flow nodes establishes graph database edges, and the entity points and the edges form an original flow graph;
the electric power system has various electric power processes, for example, a low-voltage resident new installation process for a low-voltage resident new installation work, which mainly comprises dozens of process nodes such as 'acceptance of low-voltage industry expansion application, audit data', 'investigation and dispatching', 'viewing of low-voltage industry expansion site', and the like, and aims to manage the business requirement of a low-voltage resident new installation electric energy meter. And the combination of the plurality of power flows forms a grid flow.
Specifically, the process node includes related table information that records information of a table in the power service data system corresponding to the process node. Such as a statistical table required in a certain power flow, and the related table information is used to correlate the relevant information in the statistical table. All information related to each table in each business process can be obtained through the related table information, and a user can obtain more comprehensive information conveniently.
The 'related table information' node in the power service flow map records the relevant information of the table in the service data system corresponding to the flow node. Changes in the information of the nodes involved in the table can be obtained by changes in the data records in the table. And further reflects the change of the process map. I.e., the involvement of table information nodes is indispensable with respect to other types of flow nodes.
The process nodes also comprise at least one of sub-processes, normal nodes, document nodes, and or nodes, and nodes or end nodes. That is, the flow node may be one of the above nodes, or may be a plurality of nodes.
Specifically, the significance of the flow nodes is as follows:
the sub-process nodes represent abstract nodes of a sub-process, namely a sub-map, so that the sub-process is convenient to use in subsequent re-map change;
the process node represents a node (mainly comprising a sub-process node, a normal node, a document node, an and/or node, a node and an end node) in the process map, and represents an operation event in the process, such as registration, change and the like;
and the document node is used for representing the record database table information and mainly plays a recording role.
And or node, which means that the node has one and only one node selected and can not select more or not selected by means of the meaning of logic operation; when the AND node appears, the node can be positioned at the service intersection or the selection position, so that the user is prevented from selecting more.
And nodes, representing simultaneously selected nodes;
or an end node, representing a process graph end node, indicating that the process has been completed.
The embedded graph database is a Neo4j embedded graph database, the graph database is a database which is good at storing and retrieving mesh topology structure data, and the graph database has the following advantages: 1, flexible data model. 2, semi-structured data. And 3, a network data storage structure. The embedded graph data is an embedded mode of a graph database, and is suitable for independently storing and persisting a complete network topology structure to a local disk without influencing other graph structures, so that graph structures of different versions can be stored without influencing each other.
Secondly, establishing a new process map: when a process node in the power process is changed, entity points mapped into the embedded graph database are changed, edges formed among the entity points are changed, and unchanged entity points, changed entity points, unchanged edges and changed edges form a new process graph;
for example, the information related to the table in the original process is changed, specifically, the process of "accepting low-pressure business expansion application, and auditing data" includes three document nodes: the method comprises the steps of 'user application form', 'customer contact card' and 'customer electric equipment list'. The data of the user application is derived from nine tables including a table of 'natural information of the application client', information of the power utilization application ', an address of the power utilization application' and the like. The "customer contact card" data is derived from the "apply for contact information" table. The "customer electrical equipment list" data is derived from the "electrical equipment plan" table. When the 'electric equipment scheme' table is changed, the 'customer electric equipment list' document node is influenced, and the 'acceptance of low-voltage business expansion application and data verification' process is further influenced.
And thirdly, storing the original process map and the new process map: respectively storing the original process map and the new process map into a local disk, and simultaneously recording information of process nodes in the original process map and information of process nodes in the new process map; due to the characteristics of the embedded graph database, the original flow graph and the new flow graph are serialized through the embedded interface respectively to form the topological graph of the original version and the topological graph of the new version.
By recording the process node information, each process node information of a plurality of maps can be stored, and whether the process node changes among the plurality of maps or not is further analyzed.
Finally, comparing the process maps: and comparing the new process map with the process node information in the original process map to find out difference process nodes and difference edges, so that the map change in the power process can be obtained.
Specifically, information in the topological graph of the original version and information in the topological graph of the new version are compared, and a difference process node and a difference edge are found. Through the topological graph, the relation between the nodes can be conveniently analyzed.
The difference process nodes are a newly added process node, a modified process node and a deleted process node.
The difference edges are newly added edges, modified edges and deleted edges.
For example, if a node is deleted, the edge formed by the node having a pointing relationship with the node is also deleted, and thus the differential edge can be analyzed in time.
The invention provides a method for storing a multi-version power grid logic flow map based on an embedded graph database technology and realizing the change perception of a power grid logic flow through map difference analysis, which has the following basic ideas: firstly, a topological structure of a power grid logic flow is constructed based on a graph database Neo4j, wherein the logic flow comprises a start node, a sub-flow, a normal node, an abnormal node, a document node, related table information, a node, an OR node, an end node and a relationship between the nodes, namely an edge. Using graph database technology to associate all nodes and constructing a topology structure graph of the nodes; the change of the logic flow chart is analyzed by monitoring the change of the system data related to the logic flow, and then the flow chart related to the change is persisted to the local based on the embedded function of the chart database, so that a new version is generated. And comparing to obtain the difference nodes and edges of the two versions by using the process difference analysis function. And recording the related difference information through an RDBMS database for subsequent front-end difference display.
Specifically, for example, the process of accepting low-voltage business expansion application and checking data includes three document nodes: the method comprises the steps of 'user application form', 'customer contact card' and 'customer electric equipment list'. The data of the user application is derived from nine tables including a table of 'natural information of the application client', information of the power utilization application ', an address of the power utilization application' and the like. The "customer contact card" data is derived from the "apply for contact information" table. The "customer electrical equipment list" data is derived from the "electrical equipment plan" table. When the 'electric equipment scheme' table is changed, the 'customer electric equipment list' document node is influenced, and the 'acceptance of low-voltage business expansion application and data verification' process is further influenced. The change of the graph-graph table nodes enables the graph of the process to be persisted to a local disk through a graph database embedded function. Used for the subsequent map difference analysis of the process.
The method is used in the power flow, greatly facilitates operators, and facilitates users to store the flow nodes in the power flow in the local disk in time when the flow nodes are changed.
In the invention, the original flow chart is formed by the initial nodes and the relations among the nodes, when the nodes or the node relations are changed, a new flow chart is formed by the changed nodes, the changed node relations, the changed nodes and the changed node relations, the flow charts are complete and not only changed, which is convenient for inquiring all flow services, for example, when 8 power flows exist, when a flow node in the 2 nd power flow changes, the new chart still appears in 8 power flows but not in one, unless all the flow nodes in one power flow in the 8 power flows are deleted, which leads to the disappearance of one power flow, which is always 8 power flows, when the flow nodes are changed, not only the change between the original and the new chart can be found, but also all the power flows are always in, the data volume is large, and the query is convenient; when the process map of the electric power is converted into the topological graph, the node relation can be analyzed more conveniently than the process map.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A method for obtaining map change difference based on an embedded map database is characterized by comprising the following steps:
establishing an original process map: the electric power flow comprises a plurality of flow nodes, wherein the plurality of flow nodes establish a plurality of entity points in a graph database in a cypher language according to the relationship among the flow nodes, the pointing relationship among the entity points forms a plurality of edges, and the entity points and the edges form an original flow graph;
establishing a new process map: when a process node in the power process is changed, entity points mapped into the embedded graph database are changed, edges formed among the entity points are changed, and unchanged entity points, changed entity points, unchanged edges and changed edges form a new process graph;
and (3) storing the original process map and the new process map: respectively storing the original process map and the new process map into a local disk, and simultaneously recording information of process nodes in the original process map and information of process nodes in the new process map;
and (3) comparison of process maps: comparing the new process map with the process node information in the original process map to find out difference process nodes and difference edges, so that map changes in the power process can be obtained;
the differential edges include newly added edges, modified edges and deleted edges.
2. The method according to claim 1, wherein the process nodes include table-related information, and the table-related information records information of tables in the power service data system corresponding to the process nodes.
3. The method according to claim 1, wherein the process nodes further comprise at least one of sub-processes, normal nodes, document nodes, and or nodes, and nodes or end nodes.
4. The method according to claim 1, wherein the number of the power flows is several, and the several power flows form a power grid flow.
5. The method for obtaining the map change difference based on the embedded map database as claimed in claim 1, wherein the embedded map database is a Neo4j embedded map database.
6. The method for obtaining the graph change difference based on the embedded graph database according to claim 1, wherein the flow nodes are mapped to the graph database by using cypher language.
7. The method according to claim 1, wherein the step of storing the original process map and the new process map further comprises serializing the original process map and the new process map via an embedded interface to form an original version topology map and a new version topology map.
8. The method for obtaining the map change difference based on the embedded map database according to claim 7, wherein the step of comparing the flow map specifically comprises: and comparing the information in the topological graph of the original version with the information in the topological graph of the new version to find out the difference process nodes and the difference edges.
9. The method as claimed in claim 8, wherein the difference process nodes include added process nodes, modified process nodes and deleted process nodes.
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