A telesounder is a device that can monitor the appearance of fish in the sea on land and store fish detection data. This study was conducted to monitor the appearance of fish resources in coastal or near seas by using LTE communication for data transmission of the telesounder. The purpose of this study was to develop a prototype telesounder that can monitor the appearance of fish groups in the waters about 50 km away from the coast and store fish detection data. In this study, the prototype telesounder including a fish finder, communication device and battery for stable operation at sea was developed. The stability of telesounder buoy, data transmission/reception and expected use time were investigated. The expected use time of the telesounder using LTE communication with a lithium battery (12 V, 120 Ah) was about 274 hours under the conditions of 10 minutes off and 10 minutes on, about 520 hours under the conditions of 30 minutes off and 10 minutes on, and about 142 hours under continuous conditions. As a result of the sea test, it was found that the telesounder can be used in the sea area moved about 34 km from the land and the telesounder buoy was evaluated to have secured basic stability (buoyancy balance, waterproof, antenna strength, etc.) for operation in a marine environment.

서 론
재료 및 방법
    원격 어군탐지기의 구성
    데이터의 송신 및 수신
    데이터 서버의 구성
    전원 사용 시간 추정
    LTE 통신 범위
    해상운용에 대한 안정성
결과 및 고찰
    전원 기대 사용 시간
    LTE 통신 가능 범위
결 론
사 사
References

• 허겸(국립수산과학원 수산공학과 연구원) | Gyeom HEO (Researcher, Fisheries Engineering Division, National Institute of Fisheries Science, Busan 46083, Korea)
• 황두진(전남대학교 해양생산관리학과 교수) | Doo-Jin HWANG (Professor, Department of Marine Production Management, Chonnam National University, Yeosu 56926, Korea)
• 강태종(전남대학교 수산과학과 대학원생) | Tae-Jong KANG (Graduate Student, Department of Fisheries Science, Chonnam National University, Yeosu 56926, Korea)
• 신현옥(부경대학교 해양생산시스템관리학부 교수) | Hyeon-Ok SHIN (Professor, Division of Marine Production System Management, Pukyong National University, Busan 48513, Korea) Corresponding author