음향을 이용한 실시간 유해적조 탐지 시스템

Title
음향을 이용한 실시간 유해적조 탐지 시스템
Alternative Title
Ultrasonic acoustic detection system for real-time detecting Harmful Algal Bloom
Author(s)
강돈혁; 김병권; 정승원; 김미라
KIOST Author(s)
Kang, Don Hyug(강돈혁)Jung, Seung Won(정승원)Kim, Mira(김미라)
Publication Year
2015-11-27
Abstract
The Harmful Algal Blooms (HABs, called red tide) caused by the Cochlodinium polykrikoides has serious impact annually in coastal waters of Korea and its impact is a tendency to increase in the other ocean. As yearly massive damage of the aqua-cultured fishes and ecosystem, more rapidly detecting methods than traditional methods (sampling method) are necessary. Our institute, Korea Institute of Ocean Science & Technology (KIOST), has been developed real-time acoustic detection system, based on the acoustic scattering properties of C. polykrikoides and  MHz (3.5 and 5.0 MHz) ultrasonic transducer. From several performance tests in the field, we obtained the result that the acoustic system can early detect HABs than traditional counting method using buoy-installed acoustic system. In order to improve convenience in the field, we tried to modify analogue transducer of the system to digital transducer and to reduce whole size of the system.During approximately 2 months in summer seasons, 2014 and 2015, we have been evaluated the performance from the modified system in the laboratory and field conditions. From the evaluation, the system can be successfully detected HABs in the coastal water. In the near future, our institute have a plan to construct widespread acoustic detection network to real-time detect red tide with environmental factors such as temperature, salinity, chlorophyll, and solar heat.ua-cultured fishes and ecosystem, more rapidly detecting methods than traditional methods (sampling method) are necessary. Our institute, Korea Institute of Ocean Science & Technology (KIOST), has been developed real-time acoustic detection system, based on the acoustic scattering properties of C. polykrikoides and  MHz (3.5 and 5.0 MHz) ultrasonic transducer. From several performance tests in the field, we obtained the result that the acoustic system can early detect HABs than traditional counting method using buoy-installed acoustic system. In order to improve convenience in the field, we tried to modify analogue transducer of the system to digital transducer and to reduce whole size of the system.During approximately 2 months in summer seasons, 2014 and 2015, we have been evaluated the performance from the modified system in the laboratory and field conditions. From the evaluation, the system can be successfully detected HABs in the coastal water. In the near future, our institute have a plan to construct widespread acoustic detection network to real-time detect red tide with environmental factors such as temperature, salinity, chlorophyll, and solar heat.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25011
Bibliographic Citation
The 9th Annual Meeting of Asian Fisheries Acoustics Society, pp.51, 2015
Publisher
Asian Fisheries Acoustics Society
Type
Conference
Language
English
Publisher
Asian Fisheries Acoustics Society
Related Researcher
Research Interests

Marine security,Underwater Acoustics,해양방위,수중음향

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