Accurate positioning of ship interior based on beacon positioning
In response to the complex internal environment of ships and the difficulty in achieving precise positioning,this study proposes a beacon based precise positioning technology for ships in NB-IoT communication environments.Firstly,NB-IoT beacon nodes are deployed at key locations inside the ship,utilizing the NB-IoT core network to transmit signals containing location information periodically sent by the beacon nodes to the NB-IoT cloud platform.Then,in the NB-IoT cloud platform,the positioning data is organized and collected,and then transmitted to the positioning application server.Fi-nally,the distance boundary model is selected using the positioning application server to construct a beacon positioning sig-nal transmission model inside the ship.Based on the constructed signal transmission model,the synchronous solution meth-od is used to solve the position of the internal beacon of the ship through linear solution,achieving accurate positioning in-side the ship.The experimental results show that the positioning coverage of this technology is higher than 98％,and the av-erage positioning error is less than lm,indicating that this technology can achieve precise positioning of the interior of ships.
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