Data driven method of hydraulic power station monitoring and control system

A hydropower plant and data technology, applied in the field of automation, can solve problems such as loss, loss of historical information, and failure to save historical information, and achieve the effect of ensuring reliability and integrity and convenient query

Inactive Publication Date: 2008-03-26
GUODIAN NANJING AUTOMATION
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Problems solved by technology

However, the compressed file method cannot provide a convenient and flexible query method, so the report query is not convenient, and it is very unfavorable for accident analysis
[0005] 2. Only the database server method is used. Although the query is convenient, if the database exits due to abnormality and the data is stored, the historical information will be lost, and the high reliability and integrity of the information storage cannot be guaranteed.
However, if the database server stops running, the historical information will not be saved and will be lost, so that complete historical information cannot be provided for report query and accident analysis

Method used

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  • Data driven method of hydraulic power station monitoring and control system

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Embodiment

[0021] The configuration of the automatic monitoring system of a large hydropower plant is: two database servers, two front-end servers, one off-site communication machine, one engineer station, and seven on-site operator stations. The two database servers are responsible for the main tasks related to the database of the monitoring system when they are normal, including the processing, storage and query of parameter library information and historical information. The two database servers are hot standby for each other; the two front-end servers are responsible for monitoring the system when they are normal. The main work of data collection and processing includes a large number of data collection, processing, display and control on site, and the two front-end servers are hot standby for each other; the off-site communication machine is responsible for off-site communication, and the CPU and memory loads are very small; The engineer station is responsible for some maintenance wo...

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Abstract

This invention relates a kind of data chase method of hydraulic power plant automatic monitor system and the steps are: 1. collocation: collocate the data base service machine and data base customer interface; 2. initialization: collocate the data base service machine, the node, the time and length information at the time of chasing in the parameter base; 3. history information process: when storage the history data write in the information to the data base service machine; if one of them were unsuccessful record the unsuccessful information at the same alarm and when it is recovery another data base service machine maintenances to it; if the two machines are both unsuccessful write in the data to the document by encryption and contraction and record the unsuccessful information and at the same time alarm and when it is recovery add the data according to the unsuccessful information and delete the encryption document and unsuccessful information. This invention adopts the data chase technology by combining the contraction document and data base service machine so it ensures the reliability and integrity at the same time makes the inquiry been convenience and flexible.

Description

technical field [0001] The invention relates to a data chasing method used in an automatic monitoring system of a hydroelectric power plant. It belongs to the field of automation technology. Background technique [0002] In a hydropower plant, the automatic monitoring system of the hydropower plant needs to process a lot of historical information for query and analysis. At present, there are mainly two ways to process historical information in the automatic monitoring system of hydropower plants: compressed file and database server. The existing automatic monitoring system separates the compressed file mode from the database server mode and uses them separately. However, if the above two methods are used alone, they cannot guarantee reliable preservation of historical information and convenient and flexible query at the same time, as shown in: [0003] 1. Only compressed files are used, the reliability of data storage is high, and it is not easy to cause data loss, but it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/048G06F17/30
Inventor 赵振龙邓素碧陈军李书明胡星
Owner GUODIAN NANJING AUTOMATION
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