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
【課題】 音響通信の信号の干渉を防止する。【解決手段】 水中航走体100と母船200の通信装置1a,1bは、音響通信機2a,2bと通信制御装置3a,3bと時計4a,4bと記憶装置6a,6bを備えた構成とする。記憶装置6a,6bには、音響通信機2bの送信期間とマージンと音響通信機2aの送信期間とマージンとが繰り返すスケジュールのタイムウインドウ7を記憶する。マージンは、水中航走体100の最大潜航時間の間に時計4aに生じる時間ずれに対応した値とする。通信制御装置3a,3bは、時計4a,4bからの時刻情報9a,9bと、記憶装置6a,6bから読み出すタイムウインドウ7とから、音響通信機2a,2bの送信タイミングを判断する。これにより、水中航走体100の潜航時に時計4aに時間ずれが生じて、音響通信機2aの送信タイミングに時間ずれが生じても、音響通信機2bの送信タイミングと重ならないようにする。【選択図】図1
ACOUSTIC COMMUNICATION SYSTEM AND ACOUSTIC COMMUNICATION METHOD
音響通信システムおよび音響通信方法
2018-02-01
Patent
Electronic Resource
Japanese
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