Abstract: A method for determining a location of a pollutant source, comprises: obtaining wind direction information for a region of interest; measuring pollutant concentrations for a first plane of interest in the region of interest with a movement determined based on the wind direction information using a drone equipped with a chemical sensor, the first plane of interest being determined based on a current altitude of the drone; lowering by a predetermined descending distance an altitude of the drone from a descent position on the first plane of interest determined on the basis of a result of the measuring; and determining a pollutant source candidate area based on a location of the drone after the lowering if the lowered altitude of the drone is equal to or less than a predetermined reference altitude.

Abstract: This application relates to a method for detecting chemical pollution cloud which is performed by an unmanned aerial vehicle comprising. In one aspect, the method includes receiving, from a control device for controlling the unmanned aerial vehicle, a control signal and generating a status signal indicating a state of the unmanned aerial vehicle. The method also includes determining an operation mode for detecting the chemical pollution cloud based on the control signal and the status signal. The method further includes detecting the chemical pollution cloud based on a pre-learned autonomous algorithm without the control of the control device when the determined operation mode is an automatic detection mode for detecting the chemical pollution cloud without control of the control device.

Abstract: A method for determining a location of a pollutant source, comprises: obtaining wind direction information for a region of interest; measuring pollutant concentrations for a first plane of interest in the region of interest with a movement determined based on the wind direction information using a drone equipped with a chemical sensor, the first plane of interest being determined based on a current altitude of the drone; lowering by a predetermined descending distance an altitude of the drone from a descent position on the first plane of interest determined on the basis of a result of the measuring; and determining a pollutant source candidate area based on a location of the drone after the lowering if the lowered altitude of the drone is equal to or less than a predetermined reference altitude.