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Distributed medium and small watershed geological disaster and flood early warning method based on critical rainfall

A geological disaster, distributed technology, applied in the direction of rainfall/precipitation meters, alarms, measuring devices, etc., can solve the problems of reducing security, affecting transaction speed, adverse confidentiality, etc., and achieving accurate positioning and convenient information collection. Effect

Inactive Publication Date: 2021-03-19
HUAIYIN TEACHERS COLLEGE
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Problems solved by technology

[0004] The purpose of the present invention is to provide a distributed geological disaster and flood early warning method for small and medium watersheds based on critical rainfall, so as to solve the above-mentioned background technology that the current online transactions are relatively open, which is not conducive to improving confidentiality, resulting in reduced security in the transaction process , and the general transaction processing method data transfer is not fast enough, which affects the transaction speed

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  • Distributed medium and small watershed geological disaster and flood early warning method based on critical rainfall
  • Distributed medium and small watershed geological disaster and flood early warning method based on critical rainfall
  • Distributed medium and small watershed geological disaster and flood early warning method based on critical rainfall

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the embodiments of the present invention.

[0022] Please refer to Figure 1-4 , embodiment one:

[0023] The invention discloses a distributed geological disaster and flood early warning method for small and medium watersheds based on critical rainfall, the steps of which are as follows:

[0024] Step 1: First of all, it is necessary to set up and subdivide the early warning network system. First, collect DEM data, divide the water area according to the real-time data of the radar, mark the severe flood disaster area, general area and light disaster area, and strengthen the monitoring intensity for the severe disaster area. After the area is divided, the rivers in different areas are subdivided to ensure the normal division of the tributaries, and then the DLG data is collected, and the water system is also segmented according to the radar. Information collection terminals need to be placed betw...

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Abstract

The invention discloses a distributed medium and small watershed geological disaster and flood early warning method based on critical rainfall, an information acquisition terminal, an urban area datadivision part, an image information acquisition center and a receiving terminal are arranged internally, and the output terminal of the information acquisition terminal is connected with the input terminal of the urban area data division part. According to the distributed medium and small watershed geological disaster and flood early warning method based on the critical rainfall, the river water flow can be accurately located on a geographic area and a river branch, positioning accuracy during early warning is facilitated; meanwhile, when river flood information is collected, three terminal detection devices are utilized. A rain collector, a water level height sensor and a monitor are arranged; on one hand, the rain collector can accurately measure the rainfall within the timing duration,and on the other hand, the water level height sensor can clearly measure the water line in the river.

Description

technical field [0001] The invention relates to the technical field of flood early warning, in particular to a distributed geological disaster and flood early warning method for small and medium watersheds based on critical rainfall. Background technique [0002] The torrential rain was affected by the super El Niño event, and the flood situation in 2016 was extraordinary. Since June 18, 2016, there has been heavy rainfall in the southwestern part of China to the Jianghuai area, accompanied by floods exceeding the warning level in many rivers, and even floods exceeding the historical measured records and exceeding the protection level. Most parts of the country have entered the main flood season. Flood is a water flow phenomenon in which the volume of rivers, lakes and seas increases rapidly or the water level rises rapidly caused by natural factors such as heavy rain, rapid melting of ice and snow, and storm surge. When heavy rain or snowmelt occurs in the basin, runoff wi...

Claims

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Application Information

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IPC IPC(8): G08B21/10G01W1/14G01C13/00G01F23/00G01S13/88
CPCG01C13/00G01F23/00G01S13/88G01W1/14G08B21/10Y02A50/00Y02A90/30
Inventor 牛赟曹蕾
Owner HUAIYIN TEACHERS COLLEGE
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