水质监测与采样一体化无人船设计与试验.

Favourable water quality is the basis of pond healthy aquaculture. In order to realize the automation of monitoring and sampling, an integrated unmanned water quality monitoring and sampling boat was designed and its performance test was carried out. Considering the requirements of water quality monitoring and sampling, the hull structure was designed, and the layout of the functional areas of water quality sensor, sampling system, power supply, control box, and water sample collection bottles in the cabin was designed considering the load bearing and stability. The autonomous cruise control system was developed based on the differential twin-propellers driven model and the integration of GPS and attitude sensor. The water sampling control system and water quality monitoring data platform were integrated with Internet of Things technology. The comprehensive test results showed that the trajectory of unmanned boat was accurate, the maximum deviation of monitoring point was 1.49 m, the minimum deviation was 0.39 m, and the average deviation was 1.003 m. The water quality monitoring and sampling function was stable, and the pH value, water temperature and dissolved oxygen of water could be returned in real time. Six 500 mL water sampling bottles could collect water samples of underwater 50 cm accurately, which is in line with national standards. The results provide a low-cost and reliable implementation scheme for the whole surface water quality monitoring of aquaculture. [ABSTRACT FROM AUTHOR]