The invention discloses a flood detention area
emergency evacuation early warning method based on
environmental perception and intelligent analysis, and relates to the technical field of
flood control and disaster mitigation, and the method comprises the steps: collecting the
original data of a flood detention area site, and forming a monitoring array; a monitoring array is divided into a plurality of monitoring units according to geographic grids, a rainfall
permeation model is established according to rainfall data and
soil humidity data, a
surface runoff field is constructed in combination with
terrain elevation data, and the confluence direction of the runoff field is calibrated through
water level data; based on a rainfall penetration model and a
surface runoff field, generating a flood detention area inundation evolution sequence, segmenting into an inundation grade map according to a
time step length, planning a flood detention area
emergency evacuation path, matching with a road network in a
geographic information system, generating an optimal evacuation path, and issuing graded early warning information to an early warning area. And sending a withdrawal instruction to residents in the flood detention area through the emergency
broadcasting system. According to the invention, by establishing a partition early warning mechanism and a differential early warning strategy, accurate delivery and efficient transmission of early warning information are realized.