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Dynamic data mining method and system of extension reservoir subsequent floods

A dynamic data and follow-up technology, applied in the direction of database model, relational database, electrical digital data processing, etc., can solve the problems that cannot meet the requirements of real-time flood control and scheduling of reservoirs, and the forecast period of flood forecast is short.

Inactive Publication Date: 2014-10-08
HOHAI UNIV
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Problems solved by technology

[0007] Purpose of the invention: One purpose is to provide a dynamic data mining method for extending the follow-up water flow of the reservoir, so as to solve the problem that the current flood forecast period is too short to meet the requirements of real-time flood control dispatching of the reservoir

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  • Dynamic data mining method and system of extension reservoir subsequent floods
  • Dynamic data mining method and system of extension reservoir subsequent floods

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Embodiment Construction

[0098] combine Figure 1 to Figure 4 The invention is described. The invention divides historical floods into multiple magnitudes, such as three magnitudes of large, medium and small, formulates the principle of standardization of historical floods, constructs a flood similarity index system, and performs dynamic identification and development of similar floods based on the principle of hierarchical clustering. Delay, by evaluating the effect of flood delay, optimize the combination scheme of different flood similarity indicators.

[0099] The present invention extends the dynamic data mining method of the follow-up water of the reservoir, comprising the following steps:

[0100] Step 1. The historical floods are frequency-arranged according to the total water volume during the dispatching period, and the historical floods are divided into three levels of large, medium, and small according to the frequency thresholds of the total water volume (such as: 85%, 40%). The accumul...

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Abstract

The invention relates to a dynamic data mining method and system of extension reservoir subsequent floods. The method includes the following steps that frequency analysis is conducted on historical floods according to the quantity of total water in scheduling periods, and the history floods are divided into a plurality of magnitudes according to the frequency threshold value of the quantity of the total water; standardization processing is conducted on history flood data; flood similarity indexes are selected and combined to form different flood similarity index combination schemes; similar floods are recognized dynamically, and similar flood sets are built; similar floods are selected; the similar floods are extended. According to the dynamic data mining method and system of the extension reservoir subsequent floods, the subsequent flood process and water quantity of a reservoir are estimated through the dynamic recognition and extension of the similar floods, and the defect that the forecast period of the current flood predication is too short is made up for.

Description

technical field [0001] The invention belongs to the real-time flood control dispatching technology of reservoirs in the field of water conservancy engineering, and in particular relates to a dynamic data mining method and system for extending the subsequent incoming water of reservoirs. Background technique [0002] For real-time flood control scheduling, the prediction of subsequent water inflow to the reservoir is of great significance, so it is necessary to combine the results of real-time flood forecasting to guide flood control scheduling decisions. However, limited by the technical level, the current flood forecast can only give accurate flood forecast results within a limited foreseeable period, and it is difficult to meet the requirements of real-time flood control and dispatching of reservoirs. [0003] In order to solve the problem that the forecast period of flood forecast is too short, there are currently two main approaches: [0004] The first way is to use the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/2465G06F16/285Y02A10/40
Inventor 钟平安吴业楠朱非林万新宇徐斌
Owner HOHAI UNIV
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