The invention discloses a reservoir dam
flood discharge affected river reach safety
early warning system and an early warning method thereof, and belongs to the technical field of dam
flood discharge safety early warning of water conservancy and
hydropower engineering. The
system comprises an early-warning river reach and a plurality of unmanned aerial vehicle monitoring stations, a plurality of fixed targets are arranged on
bank slopes on the two sides of the early-warning river reach, the fixed targets on the
bank slopes on the two sides of the early-warning river reach are alternately arranged in a staggered mode, the unmanned aerial vehicle monitoring stations are arranged on the
bank slopes of the early-warning river reach, and the unmanned aerial vehicle monitoring stations are provided with unmanned aerial vehicles. A high-definition camera, an RTK
measuring instrument, a
wireless transceiver module and a controller are carried on the unmanned aerial vehicle. The unmanned aerial vehicle can quickly capture a fixed target, and can quickly and accurately position a dangerous case position in combination with a high-precision RTK
measuring instrument carried on the unmanned aerial vehicle, so that the position of a person involved in danger can be confirmed in time when the dangerous case occurs, the response timeliness of
emergency rescue measures is improved, effective rescue measures are adopted in a targeted manner, and the
emergency rescue efficiency is improved. And the risk of personnel casualties is reduced.