Case Study: DJI M600 Pro with Echosounder for Bathymetric Survey

Project Location	United Arab Emirates
Customer	GeoDrones Aerial Services, Dubai
Prepared by	Sanju Mathew, Aeromotus (DJI Enterprise) Dubai

Drones for Survey & Measurement

DJI Industrial Drone M600Pro with the Echosounder, Altimeter.
Echosounder ECT400 was used for measuring depth.
The specifications of the equipment are mentioned below:

DJI M600 Pro • Flight Control System – A3 Pro • Operating Temperature – 14° to 104° F • Lightbridge 2 HD transmission system gives you an opportunity to organize high-definition broadcasting on a professional level

Echologger ECT400 • Interface – RS-232 • Effective measurement range 0.15 m to 100 m • Power input 8 V to 75 V, 2 W • Temperature range −10°C to +50°C • Sensor weight 270 g
Total kit weight 2500 g

Methodology

1. Pre – Survey

The mission plans were created using UGCS software.

The flight altitude was set to 2m above water surface
The side distance between two lines was set to 5 meters
The flight speed was set to 1m/s

Data Capture

The data capture started as per the planned mission.
It took around 1 hour the finish one entire lake.

Data Processing – Bathymetric

All the data captured for Bathymetric Survey was processed using Hydromagic software. The raw data was collected in csv as well as nmea.txt format.
Final output of the survey was in csv file having 3 columns viz. Longitude, Latitude and Depth.