On-line monitoring, identification and early warning method of mountain torrent disaster and its early warning system

Abstract

The invention discloses a mountain torrent disaster on-line monitoring and identification early warning method. The method includes the following steps that: a data acquisition subsystem acquires data at a site: an automatic rainfall monitoring station acquires and processes disaster field rainfall information and transmits the information to the system platform of an early warning index analysis model through a wireless mode and / or a wired transmission mode, a water level and / or mud level monitoring station acquires and processes field debris flow and water level information and transmits the information to the system platform of the early warning index analysis model through a wireless mode and / or a wired transmission mode, and a video monitoring station acquires and processes disaster field image information and transmits the information to the system platform of the early warning index analysis model through a wireless mode and / or a wired transmission mode; an identification early warning subsystem performs early warning judgment and issues internal early warnings; personnel are determined, and formal early warnings are issued; real-time monitoring is performed; and information query is performed. The method has the advantages of rapid identification and predictive early warning, and can assist in avoiding loss. The invention also discloses an early warning system using the mountain torrent disaster on-line monitoring and identification early warning method.

Description

technical field [0001] The invention relates to the technical field of mountain torrent disaster monitoring and early warning, more specifically, it relates to a method for on-line monitoring, identification and early warning of mountain torrent disasters. The invention also relates to an early warning system using the method for online monitoring, identification and early warning of mountain torrent disasters. Background technique [0002] my country's landforms are complex and diverse, and are dominated by hilly areas, accounting for about two-thirds of the country's land area; due to the East Asian monsoon region, frequent rainstorms, complex geological conditions, and the impact of human activities, mountain torrent disasters occur Frequent and huge losses are one of the main natural disasters and people's livelihood issues; mountain torrent disasters refer to disasters that cause floods in mountainous areas due to rainfall and mudslides and landslides induced by mountain...

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Problems solved by technology

[0003] China's mountain torrent disaster prevention and control area is large; the hilly area is affected by terrain and landform, and the local microclimate characteristics are obvious; The degree of automation is low, and it is difficult to capture the information of sudden rainstorms and floods; there is also a lack of monitoring facilities for debris flows and landslides induced by mountain torrents. The data collection of water and rain data in small watersheds in hilly areas mainly relies on manual observation and artificial flood reporting. The communication equipment is outdated and the methods are backward. The speed of water and rain data transmission is slow, the degree of automation is low, and the timeliness of information transmission is poor. Weak, local heavy rainfall forecast accuracy is not high, mountain torrent disaster occurrence and development forecast is not accurate enough; most small watersheds in hilly areas do not have flood forecast and early warning systems, even if there are flood reporting stations, because the number of flood reporting periods is too small, it cannot To meet the needs of forecasting, coupled with the short forecast period of mountain torrent disasters, it often loses the meaning of reference and decision-making; the traditional method of monitoring, forecasting and early warning of mountain torrents and debris flows is to establish simple monitoring points in the field, and adopt simple observation methods, that is, mainly use manual observation of rainfall and occurrence of debris flows For post-warning, the technology content of detection instruments is not high, and the method is single. It is difficult to communicate smoothly in thunderstorm weather, especially at night, and it is difficult to implement monitoring and early warning work; professional immediate monitoring alarms are forecasts within zero hours to several hours, based on rainfall maps , rain information, dangerous precursors, and the basis for the development of monitoring instruments are of great significance to the refuge and rescue of mudslides in cities, industries, mines, and transportation departments; The shortcomings of low technological content, poor monitoring accuracy, untimely results and insufficient reliability have become prominent difficulties in the current flood control and disaster reduction work.

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