Engineering schematic for a science and innovation competition, 2D flat vector illustration, white background, aquaculture smart inspection and feeding unmanned boat (Dongting Fishing Patrol Robot), hull equipped with a Beidou antenna, 4G communication module, water quality sensor, screw-type quantitative feeding mechanism, feed bin, spreading disc, propulsion motor, floating on the pond surface, beside it a simple Alibaba Cloud icon and a small schematic of a mobile APP remote monitoring interface, clean and tidy lines, clear details, no extra clutter
