Urban flood disaster early warning system and method
A flood disaster and early warning system technology, applied in the direction of alarms, climate sustainability, instruments, etc., can solve problems such as the inability to truly reflect the urban flood disaster situation, the delay in the construction of early warning systems, and water resources pollution, and achieve the realization of flood disaster monitoring. and control automation, good practical application value, and simple implementation process.
Active Publication Date: 2014-02-05
WUHAN UNIV
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[0002] Urban floods have a huge impact on the city and bring immeasurable losses to the city: waterlogging in the urban area, traffic paralysis, threats to houses and property, pollution of water resources, rapid spread of diseases, destruction of building facilities, and even death toll. Casualties; flash floods in distant urban areas, poor drainage; in addition to urban waterlogging, surrounding farmlands and villages will be flooded, crop production will be severely reduced, livestock and people's lives and property will be threatened, causing serious economic losses
[0003] At present, the construction of urban flood disaster early warning system is relatively lagging behind, and the monitoring methods used in the existing early warning system are not scientific enough, without considering the temporal and spatial distribution of future rainfall, the early warning results have large errors, and cannot truly reflect the situation of urban flood disasters. have a great impact
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[0042] 3.1 Based on the weather forecast, the possible maximum rainfall in the next 1 hour, 2 hours, 6 hours, 12 hours and 24 hours is obtained, and the corresponding return periods of the next 1 hour, 2 hours, 6 hours, 12 hours and 24 hours are calculated respectively P;
[0043] 3.2 According to the prediction interval △t, the expected rainfall period is divided into various time periods, and the rainfall process line models of each time period in the next 1 hour, 2 hours, 6 hours, 12 hours and 24 hours are respectively constructed; It depends on the characteristics of urban rainstorms, and the Chicago rain pattern is generally used;
[0044] 3.3 Through the random number table or computer random function, extract the parameters of the rainfall process line in each time period;
[0045] 3.4 Arranging and obtaining the temporal and spatial distribution of rainfall in each sub-catchment in different periods in the next 1 hour, 2 hours, 6 hours, 12 hours and 24 hours.
[0046...
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The invention discloses an urban flood disaster early warning system and method. The urban flood disaster early warning system comprises a water level measuring module, a data collecting module, a transmission module and an early warning module. The water level measuring module is used for measuring water level data of rivers, lakes and inspection wells, the data collecting module is used for collecting the water level data measured by the water level measuring module, the transmission module is used for transmitting the water level data collected by the data collecting module to the early warning module, and the early warning module is used for analyzing the water level data and publishing early warning information. The urban flood disaster early warning system is simple in structure, high in automation degree, simple in implementation process, good in expansibility and capable of effectively realizing flood disaster monitoring and control automation.
Description
technical field [0001] The invention relates to the technical field of water conservancy modernization, and more specifically relates to an urban flood disaster early warning system and method, which are used for urban flood disaster control. Background technique [0002] Urban floods have a huge impact on the city and bring immeasurable losses to the city: waterlogging in the urban area, traffic paralysis, threats to houses and property, pollution of water resources, rapid spread of diseases, destruction of building facilities, and even death toll. Casualties; flash floods in distant urban areas and poor drainage; in addition to urban waterlogging, surrounding farmlands and villages will be flooded, crop production will be severely reduced, livestock and people's lives and properties will be threatened, causing serious economic losses. [0003] At present, the construction of urban flood disaster early warning system is relatively lagging behind, and the monitoring methods ...
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IPC IPC(8): G08B21/10
CPCY02A50/00
Inventor 洪林杨一建宋元胜
Owner WUHAN UNIV
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