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1. WO2020110190 - UNDERWATER INFORMATION VISUALIZING DEVICE

Publication Number WO/2020/110190
Publication Date 04.06.2020
International Application No. PCT/JP2018/043494
International Filing Date 27.11.2018
IPC
G01S 15/96 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
96for locating fish
G01S 7/527 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
52of systems according to group G01S15/58
523Details of pulse systems
526Receivers
527Extracting wanted echo signals
G01S 15/89 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
CPC
G01S 15/89
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
G01S 15/96
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
96for locating fish
G01S 7/527
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
52of systems according to group G01S15/00
523Details of pulse systems
526Receivers
527Extracting wanted echo signals
Applicants
  • 株式会社AquaFusion AQUAFUSION, LTD. [JP]/[JP]
Inventors
  • 笹倉 豊喜 SASAKURA, Toyoki
  • 松尾 行雄 MATSUO, Ikuo
Agents
  • 杉浦 正知 SUGIURA, Masatomo
  • 杉浦 拓真 SUGIURA, Takuma
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) UNDERWATER INFORMATION VISUALIZING DEVICE
(FR) DISPOSITIF DE VISUALISATION D'INFORMATIONS SOUS-MARINES
(JA) 水中情報可視化装置
Abstract
(EN)
This underwater information visualizing device, which is installed in a moving body such as a ship traveling in the vicinity of the water surface, and which uses ultrasonic waves to visualize and display information such as fish in the water, and the seabed, is provided with: a transmission signal generating unit including a pseudo noise sequence generating circuit which generates a pseudo noise sequence signal, and a modulation circuit which forms a transmission signal by modulating a carrier wave signal by means of a pseudo noise sequence signal having a transmission timing; a transmitting unit which emits the transmission signal into the water as an ultrasonic wave; a receiving unit which receives an echo of the ultrasonic wave; a received signal processing unit which determines an echo corresponding to the transmission signal by subjecting the echo to a correlation process by means of the pseudo noise sequence signal; and a display which displays an output signal from the received signal processing unit, wherein the display is configured to display a plurality of received signals simultaneously on a screen, and the period of the transmission signal is set to be at most equal to (2D/Vu), where Vu is the speed of sound waves in water, and D is the distance to the seabed.
(FR)
Ce dispositif de visualisation d'informations sous-marines, installé dans un corps mobile tel qu'un navire se déplaçant à proximité de la surface de l'eau, et utilisant des ondes ultrasonores pour visualiser et afficher des informations telles que des poissons dans l'eau, et le fond marin, est pourvu de : une unité de génération de signal de transmission comprenant un circuit de génération de séquence de pseudo-bruit qui génère un signal de séquence de pseudo-bruit, et un circuit de modulation formant un signal de transmission par modulation d'un signal d'onde porteuse au moyen d'un signal de séquence de pseudo-bruit doté d'une synchronisation de transmission; une unité de transmission qui émet le signal de transmission dans l'eau sous la forme d'une onde ultrasonore; une unité de réception qui reçoit un écho de l'onde ultrasonore; une unité de traitement de signal reçu qui détermine un écho correspondant au signal de transmission en soumettant l'écho à un processus de corrélation au moyen du signal de séquence de pseudo-bruit; et un dispositif d'affichage qui affiche un signal de sortie provenant de l'unité de traitement de signal reçu, l'affichage étant configuré pour afficher une pluralité de signaux reçus simultanément sur un écran, et la période du signal de transmission étant réglée pour être au maximum égale à (2D/Vu) où Vu est la vitesse des ondes sonores dans l'eau, et D est la distance au fond marin.
(JA)
水面付近を走行する船などの移動体に設置され、超音波を使用して水中の魚や海底などの情報を可視化して表示する水中情報可視化装置において、 疑似雑音系列信号を生成する疑似雑音系列発生回路及び送信タイミングの疑似雑音系列信号によって搬送波信号を変調して送信信号を形成する変調回路を有する送信信号生成部と、送信信号を超音波として水中に送出する送信部と、超音波のエコーを受信する受信部と、エコーを疑似雑音系列信号によって相関処理を行うことによって、送信信号と対応するエコーを判別する受信信号処理部と、受信信号処理部の出力信号を表示する表示器とを備え、表示器は、複数の受信信号を画面上で同時に表示するようになされ、送信信号の周期は、水中の音波の速度をVuとし、海底までの距離をDとする場合に、(2D/Vu)以下とされた水中情報可視化装置である。
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