Method and system for detecting thermal anomaly of earth's surface based on unmanned aerial vehicle-carried infrared remote sensor

Abstract

The invention provides a method and system for detecting thermal anomaly of the earth's surface based on an unmanned aerial vehicle-carried infrared remote sensor. The method comprises the following steps: acquiring a real-time position of an unmanned aerial vehicle; acquiring the real-time height of the unmanned aerial vehicle; acquiring a thermal infrared image of the earth's surface; acquiring a multispectral image of the earth's surface; and fusing the real-time position and the real-time height of the unmanned aerial vehicle, the thermal infrared image and the multispectral image into a thermal infrared image map, inverting the thermal infrared image map into a surface temperature distribution map by using a surface temperature inversion module, and transmitting the surface temperature distribution map back to a control terminal. According to the method and system for detecting thermal anomaly of the earth's surface based on the unmanned aerial vehicle-carried infrared remote sensor in the invention, the method and the system can obtain the data in real time at the control terminal, carry out quick preprocessing and earth temperature interpretation, compare an interpretation result with an actual measurement temperature, check data quality in real time, and adjust a data observation scheme in time for a region with a poor interpretation effect; and therefore, efficient and real-time detection of the thermal anomaly of the earth's surface is realized.

Description

technical field [0001] The invention relates to the technical field of thermal infrared remote sensing, in particular to a method and system for detecting thermal anomalies on the surface of an unmanned aerial vehicle equipped with infrared remote sensing. Background technique [0002] Geothermal resources are clean energy that is renewable, sustainable, and less disturbed by the external environment. Under the deployment of ecological civilization construction and the strategic goal of "carbon peak carbon neutrality", we should give full play to my country's huge reserves of geothermal resources, wide range of applications, Each region is easy to carry out the advantages of developing according to local conditions, increase the intensity of exploration and evaluation, and promote the rational and orderly development of the geothermal industry. Traditional geothermal geological surveys, geophysical and geochemical explorations have a large workload, high cost, and low work ef...

AI Technical Summary

Problems solved by technology

[0009] (1) Low flexibility: Satellite and aerial remote sensing are limited to large-scale observations, and the matching degree and suitability for specific areas are not enough. It is impossible to obtain target anomaly information from large-scale data in a targeted manner, and it does not support Conditions and detection targets The custom remote sensing data observation mode can only be used as a reference in the early stage

[0010] (2) Insufficient data resolution: Satellite and aerial remote sensing observations have a large height, which makes it easier to obtain wider data coverage, but also limits the data resolution. As shown in Table 1, the waveband of the remote sensing infrared imaging system is 10 μm. The resolution is only 100m, which lacks the reflection of detailed information on surface thermal anomalies, and the interpretation results are prone to large deviations

[0011] (3) Lack of reflection on local geothermal anomalies: due to the low resolution of remote sensing data, satellite and aerial observation data do not reflect the finer details of local thermal anomalies, and local details are easily submerged in the regional background. remote sensing signal enhancement and extraction technology, the overall effect of this technology needs to be improved

[0012] (4) UAV thermal infrared imaging technology has not achieved good results in geothermal exploration applications: on the one hand, the current thermal infrared imaging technology based on UAV platforms is mostly used in public security, environmental pollution, precision agriculture, and power grid detection. There are few application practices in the field of geothermal exploration; on the other hand, in order to realize the rapid and precise detection of surface thermal anomalies, it is necessary to optimize and upgrade existing technologies and add functions such as real-time data return and preprocessing

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