Abstract:

We employ the positioning and short-message communication functionalities of BeiDou  2nd Satellite Navigation System to implement positioning and data transmission of buoy positions for the supervision and management of large-scale and multi-type buoys. We combine continuous geographic coordinates by BeiDou and GPS positioning together to compensate loss and error of position data. Data segmentation technology is employed to overcome transmission length limit of BeiDou data. Large-scale buoy data are efficiently received and processed by dynamic buffer pool and data stitching. Experiments show that the approach has higher localization accuracy, better communication stability and higher receiving rate. This can satisfy the requirements of ocean buoy management.

Key words: ocean observation, Beidou 2nd generation satellite navigation system, marine data buoy, buoy supervision and management