A Dynamic Inquiry Method for Substation History Items Database
A dynamic query and database technology, applied in the field of database management, can solve the problems of reducing program operation efficiency, equipment utilization rate, long query waiting time, etc., and achieves the effect of improving program operation efficiency, improving usability, and shortening waiting time.
Active Publication Date: 2020-06-09
INTEGRATED ELECTRONICS SYST LAB
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Problems solved by technology
When the historical items in the historical database reach a certain level, when querying historical items in a long period of time, there will be problems such as long query waiting time or even system crashes. At the same time, the utilization rate of equipment and program running efficiency
Method used
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Embodiment Construction
[0042] Such as figure 1 As shown, a dynamic query method for a substation historical event database includes the following steps:
[0043] Step 1. Input historical item query conditions on the client side of the query system. The query conditions include at least the start time and end time of historical items. After combining the query conditions, send historical item query requests to the server side of the query system; here you can synchronously Whether the connection between the client and the server is successfully verified.
[0044] Step 2. The server receives the historical event query conditions sent by the client and processes the query request, returns the query result to the client, and the client processes the query result asynchronously;
[0045] S2-1. After the server receives the historical item query condition, it checks whether it is a valid query request;
[0046]S2-2. If the query request is invalid, the server returns a query failure message to the clien...
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The invention relates to a method for dynamically querying substation history matter databases. The method comprises the following steps of: 1, inputting a history matter query condition at a client so as to send a query request to a server; 2, receiving the history matter query condition sent by the client by the server, processing the query request, and returning a query result to the client so that the client asynchronously processes the query result; 3, after completing a history matter query task, sending a query termination request to the server by the client; and 4, receiving and processing the query termination request by the server. Through first-time query and dynamic obtaining, the efficiency of querying mass history matters of substations is greatly improved, the fact of efficiently and correctly querying history matters becomes possible, powerful support is provided for effectively troubleshooting and solving substation faults, the usability of engineers is enhanced while the substation history matter query efficiency is effectively improved, and technical support is provided for efficiently and correctly eliminating substation faults.
Description
technical field [0001] The invention relates to the technical field of database management, in particular to a dynamic query method for a substation historical item database. Background technique [0002] During the actual operation of the substation, operational events will be continuously generated and stored in the historical event database. This type of data is generated in a high burst, and the data time accuracy is usually at the second or millisecond level. If the substation is large in scale, the interval The number is large, and after running for a period of time, the amount of historical event data will form a larger scale. When a fault occurs in a substation, it is necessary to query historical events to analyze and locate the cause of the fault. It is particularly important to efficiently and accurately obtain the required historical events from a large number of historical events, which can provide a reliable guarantee for substation fault analysis and rapid tro...
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IPC IPC(8): G06F16/9032G06F16/9038
CPCG06F16/9032G06F16/9038
Inventor 栾丽娜苏怀广王菲菲张凯
Owner INTEGRATED ELECTRONICS SYST LAB