PROBLEM TO BE SOLVED: To provide an underwater sound observation device installed at a correct position when a structure and the like are sunk and built in water.SOLUTION: An underwater sound observation device transmits a state of an underwater state replaced with a time difference between two digital sound signals to an on-board ship station. The underwater state transmits two sound digital signals having a prescribed time difference determined by the state of the structure in water to the on-board ship station in a one-way direction. The on-board ship station receives the time difference between the two digital sound signals from transmitted from the underwater station by the on-board ship station. A reception signal recovery circuit in the on-board ship station measures the time difference between the two digital sound signals, and recovers the state based on the time difference between the sound digital signals. The structure can correctly and quickly grasp the state in water in the underwater station by performing a one-way communication with the on-board ship station from the underwater state, and as a result, the work and the like in water can be correctly performed in a short time.SELECTED DRAWING: Figure 1
【課題】本発明は、水中に、構造物等を沈めて構築する場合、正確な位置に設置する水中音響観測装置に関するものである。【解決手段】本発明の水中音響観測装置は、水中局の状態を2つのデジタル音響信号の時間差に置き換えて、前記水中局から船上局に送信する。前記水中局は、水中の構造物の状態によって決まる一定の時間差をもった2つの音響デジタル信号を前記船上局に対して一方通行で送信する。前記船上局は、前記水中局から送信された2つの前記デジタル音響信号の時間差を前記船上局で受信する。前記船上局における受信信号復元回路は、前記2つのデジタル音響信号の時間差を測り、前記音響デジタル信号の時間差に基づく状態を復元する。前記構造物は、前記水中局から船上局への一方通行の通信を行うことにより、水中局における水中での状態を迅速で正確に把握することができるため、水中での工事等が短時間で正確に行うことが可能になった。【選択図】図1
UNDERWATER SOUND OBSERVATION DEVICE
水中音響観測装置
2016-05-09
Patent
Electronic Resource
Japanese
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