Real-time collapse region area measuring method based on unmanned aerial vehicle

Abstract

The invention discloses a real-time collapse region area measuring method based on an unmanned aerial vehicle, and relates to the field of measurement, and the method comprises the following steps: S1, enabling the unmanned aerial vehicle to carry a photoelectric pod to collect data, and storing image data and photoelectric pod parameters through a ground station; s2, reading the image data storedin the ground station, and analyzing camera internal parameters stored in the image data and external parameters during data acquisition; s3, converting an image coordinate system of the read image data into a world coordinate system; s4, according to the converted world coordinate system parameters, obtaining the related situation of the area of the collapse area to be measured. The unmanned aerial vehicle arrives at the scene at the first time when geological disasters happen, scene high-definition pictures, aircraft attitude and camera attitude information are returned in real time throughhigh-definition picture transmission, the collapse area is measured in real time, the real-time surveying and mapping of the disaster scene is achieved, the timeliness of disaster assessment is improved, and the rescue speed is improved.

Description

technical field [0001] The invention relates to the field of measurement, in particular to a real-time method for measuring the area of ​​a landslide area based on an unmanned aerial vehicle. Background technique [0002] Emergency surveying and mapping is the basic support for providing geographic information and modern surveying and mapping technology for various public emergencies. It is an important part of the national emergency response system and the guarantee and basis for command decision-making and emergency rescue. Real-time surveying and mapping information is of great significance for carrying out emergency rescue in emergencies. At present, the common method is to use drones to take orthophoto / 3D images at geological disaster sites. After the aircraft flies back to the command center, use high-performance computers to monitor the scene Orthophoto imaging / 3D reconstruction, measure the area of ​​the disaster area on the orthophoto / 3D model, but the problem is th...

AI Technical Summary

Problems solved by technology

[0002] Emergency surveying and mapping is the basic support for providing geographic information and modern surveying and mapping technology for various public emergencies. It is an important part of the national emergency response system and the guarantee and basis for command decision-making and emergency rescue. Real-time surveying and mapping information is of great significance for carrying out emergency rescue in emergencies. At present, the common method is to use drones to take orthophoto / 3D images at geological disaster sites. After the aircraft flies back to the command center, use high-performance computers to monitor the scene Orthophoto imaging / 3D reconstruction, measure the area of ​​the disaster area on the orthophoto / 3D model, but the problem is that the aircraft needs to fly back to the command center, and then extract relevant data for calculation, the real-time performance is poor, and often achieve a certain area It takes several hours or even days for the orthophoto map, which greatly affects the timeliness of disaster assessment, thus affecting the speed of rescue

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