Rainfall sensor network node layout optimization method and device

A layout optimization and sensor network technology, applied in image data processing, calculation models, prediction, etc., can solve the problems of complex site layout constraints, low precision of precipitation surface fitting, low solution efficiency, etc., to reduce the number of units, The effect of accelerating solution efficiency and accelerating calculation efficiency

Active Publication Date: 2019-09-13
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

At present, there are still many problems to be explored in the use of remote sensing precipitation data in the layout of precipitation stations, such as low precision of precipitation surface fitting, complex station layout constraints, and low solution efficiency.

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  • Rainfall sensor network node layout optimization method and device
  • Rainfall sensor network node layout optimization method and device
  • Rainfall sensor network node layout optimization method and device

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Embodiment Construction

[0063] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0064] An embodiment of the present application provides a method for optimizing the layout of precipitation sensor network nodes, referring to figure 1 , the method includes:

[0065] Step 101: Obtain precipitation satellite remote sensing data, ground monitoring data, and node optimization auxiliary data.

[0066] Specifically, precipitation satellite remote sensing data may include CMORPH data and TRMM data.

[0067] CMORPH data is released by the US National Oceanic and Atmospheric Administration (NOAA), and the data started on November 22, 2002. The products of this data set can be obtained within 3 hours after the precipitation event at the earliest (near real-time fast product QMORPH), and the CMORPH products with higher ...

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Abstract

The invention provides a rainfall sensor network node layout optimization method and device. The rainfall sensor network node layout optimization method and device can obtain high-precision rainfall space distribution through simulation by taking satellite remote sensing rainfall data as a background field and combining the ground monitoring data, so as to convert discretized ground monitoring data into high-precision and continuous ground data, and furthermore, can discretize the ground area through the Thiessen polygon, to reduce the number of traversing units, and improve the calculation efficiency. According to rainfall spatial distribution, the rainfall sensor network node layout optimization method and device can establish a multi-objective function and constraint conditions of nodelayout optimization to obtain a rainfall station layout optimization model, and can solve the model to obtain an optimal rainfall sensor network node layout by adopting a multi-objective microscopic neighborhood particle swarm algorithm, so as to provide a theoretical basis for reasonable layout of a ground monitoring station. In the solving process, the rainfall sensor network node layout optimization method and device transform the multi-target microscopic neighborhood particle swarm algorithm to be suitable for a parallel computing architecture, so as to accelerate the solving efficiency.

Description

technical field [0001] The invention relates to the field of hydrology and water resources monitoring, in particular to a method and device for optimizing the node layout of a precipitation sensor network. Background technique [0002] Rainfall is an important process of the hydrological cycle, and the observation of rainfall is very important for understanding the hydrological process. At present, the observation of precipitation mainly depends on the deployment of rainfall observation stations, which allow us to directly measure the rainfall in the area, and it is currently considered the most accurate method to obtain the precipitation in a certain area. [0003] However, in data-deficient areas, especially in the southwestern source area, hydrological and meteorological data are seriously insufficient. For example, there are only 11 rainfall stations within the source area of ​​the Yellow River, and the coverage is extremely low. Moreover, rainfall has great spatial var...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06N3/00G06T17/05G06T17/20
CPCG06N3/006G06Q10/04G06T17/05G06T17/20Y02A90/10
Inventor 冶运涛梁犁丽蒋云钟曹引顾晶晶赵红莉毕忠飞仇亚琴贾玲段浩郝春沣
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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