海洋观测网用AIS潜标定位回收系统研制与测试OA北大核心CSCDCSTPCD

With the deepening of marine scientific research and resource development,long-term continuous and networked ocean observation has become a core requirement.As a key observation device,the efficient retrieval of subsurface buoys is an important part of ensuring the integrity of observation data and the reuse of equipment.Addressing the industry pain points of difficulty and inefficiency in searching for subsurface buoys after they sur-face in harsh sea conditions(wave height of 2-4 m)or low visibility(at night or in heavy fog),this paper develops a subsurface buoy positioning an rocovery system based on AIS(Automatic Identification System)communication and GNSS(Global Navigation Satellite System)positioning.This system achieves dual on-off control through wa-tertight connectors and mechanical pressure switches,and adopts a nylon-material pressure-resistant cabin design,featuring strong corrosion resistance and lightweight structure.Multi-sea area voyage tests,full-dimensional per-formance verification,and application practice have shown that this system can shorten the search time for subsur-face buoys from 2.5 hours per buoy in the traditional method to less than 0.5 hours per buoy,improving efficiency by 80%.Moreover,the cost per unit is only 1/5 of that of foreign products,with a positioning accuracy of≤10 m(CEP95).It can stably accommodate the batch deployment of multiple subsurface buoys,providing reliable tech-nical support for the retrieval of underwater equipment on research vessels.