China Deploys USV to Monitor Water Quality

To detect sudden water pollution outbreak of the city’s mother river in time, the government department of Zhengjia city, a coastal city of China, introduced unmanned surface vehicle to their water monitoring routine to timely find out and restrain all illegal sewage discharge from companies alongside the riverbank.

Deployed with a total phosphorus flow injection analyzer, a ME120 autonomous multi-purpose survey boat from OceanAlpha was utilized as a mobile on-line monitoring USV to monitor a designate river section.

From 10 am to 5 pm on August 7th, 2019, the USV conducted the mobile total phosphorus detection to the river section at the speed of 1 knot. The detection consisted of 84 monitoring spots and the total length is 3.5 kilometer. A water sampling report with sampling spot coordinates, time and sample amount was generated automatically during navigation.

Application of USV can monitor the full range of a designated water area with high efficiency and low cost. It can help environment managers to understand the water quality comprehensively in the shortest time.

As there is no human intervention in the data process, the accurate and authentic of the data is highly guaranteed. USV is proved to be an effective supplement to the traditional river cross-section monitoring methods.