Drone for Measuring Water Depth of Field

摘要

The present invention provides a simple method and apparatus capable of accurately measuring the water depth of a field, in particular, the whole field.;SOLUTION: An ultrasonic transmitter/receiver and a drone equipped with an infrared transmitter/receiver or a microwave transmitter/receiver are allowed to fly over the field, and the distance between the ultrasonic wave surface reflection and the microwave or infrared ground reflection. Measure the water depth just below the drone from the difference in measurement. By flying the drone all over the field, the water depth of the entire field can be accurately measured. The measurement is preferably performed only while the drone is flying at a predetermined speed or higher.