公开(公告)号：US20190007146A1

公开(公告)日：2019-01-03

申请号：US16065425

申请日：2016-11-08

Applicant: Hoseo University Academic Cooperation Foundation

Inventor： Hak-Lim KO ,  Yong-Kap CHO ,  Tae-Ho IM

IPC: H04B13/02 ,  H04W72/04

CPC classification number: H04B13/02 ,  H04B7/26 ,  H04B11/00 ,  H04W72/0453 ,  H04W72/048 ,  H04W84/18

Abstract: The present invention provides an underwater communication system capable of efficiently communicating with a plurality of sensor nodes by using a limited frequency in the water. The present invention has a hierarchical structure in which one underwater base station control station manages a plurality of underwater base stations in the water, and each underwater base station within a plurality of underwater base stations centrally manages a plurality of underwater sensor nodes. Furthermore, the present invention enables efficient underwater communication the underwater environment by using different frequencies, when the underwater base station control station performs the underwater communication with the plurality of underwater base stations, and when the underwater base stations perform the underwater communication with the plurality of underwater sensor nodes.

公开(公告)号：US20180375592A1

公开(公告)日：2018-12-27

申请号：US16064750

申请日：2016-11-08

Applicant: Hoseo University Academic Cooperation Foundation

Inventor： Hak-Lim KO ,  Yong-Kap CHO ,  Tae-Ho IM

IPC: H04B11/00 ,  H04B13/02 ,  G01S11/14 ,  H04B17/327 ,  H04W4/38

Abstract: The present invention relates to an underwater communication method capable of communicating with a plurality of sensor nodes within a limited frequency band. Underwater information communication of the present invention allocates an appropriate frequency to each sensor node according to the distance between a central node and the plurality of sensor nodes, and then, controls underwater communication between the central node and the plurality of sensor nodes using the allocated frequency. By virtue of such control, the present invention prevents the occurrence of an unusable sensor node which cannot smoothly perform underwater communication when the allocated frequency is unreasonable. Therefore, the present invention has the effect of enabling efficient underwater communication between a plurality of sensor nodes and a central node.