ACOUSTIC COMMUNICATION SYSTEM AND ACOUSTIC COMMUNICATION METHOD

Japanese Patent JP2018019135

A

PROBLEM TO BE SOLVED: To prevent interference between signals in acoustic communication.SOLUTION: An underwater sailing body 100 and mother ship 200 includes communication devices 1a, 1b configured to comprise acoustic communication apparatuses 2a, 2b, communication controllers 3a, 3b, clocks 4a, 4b, and storage devices 6a, 6b. In the storage devices 6a, 6b is stored a time window 7 for a schedule in which a transmission period and margin of the acoustic communication apparatus 2b and a transmission period and margin of the acoustic communication apparatus 2a are repeated. The margin has a value corresponding to a time deviation to be caused in the clock 4a during a maximum underwater cruise time of the underwater sailing body 100. The communication controllers 3a, 3b determines transmission timing of the acoustic communication apparatuses 2a, 2b from time information 9a, 9b from the clock 4a, 4b and time windows 7 read from the storage devices 6a, 6b. Thereby, even when a time deviation generated in the clock 4a at the underwater cruise time of the underwater sailing body 100 causes a time deviation in transmission timing of the acoustic communication apparatus 2a, the transmission timing is made not to overlap with transmission timing of the acoustic communication apparatus 2b.SELECTED DRAWING: Figure 1

KOBAYASHI AKIRA
SHIOGATA DAISUKE
TSUKUI TOMOYA
SUZUKI SHUNTARO

JP2016145475A

February 01, 2018

July 25, 2016

Click for automatic bibliography generation  

IHI CORP

H04B11/00; B63C11/00; B63C11/26; B63C11/48

Mitsuo Sakamoto
Hiroyuki Takao

Previous Patent: Communication equipment and a control method

Next Patent: A frequency-selective board for mount, and an in-vehicle radar system