The latest cultivation research and development of seeding technology was improved because the demand for direct planting increased. The Programmable Logic Controller (PLC) and position sensor are utilized to control the seed detection system. In this paper, of seed types, RPM (Revolution per minute) variations and hole size are considered to determine the capacity of seeder hopper to meet the needs of customer demand. These algorithms were composed of the process of seed monitoring and the compulsion opening system. The capacity of seeding is assumed to be 1.53kg(11.6 liters) of rice seed per 1.8km. Therefore, this detection system can be used to determine the capacity according to seed types, RPM and hole size.

Abstract
 1. 서론
 2. 시스템 구성
  2.1 파종기의 배종감지 시스템 개략도
  2.2 배종감지 시스템 알고리즘
  2.3 강제 개통부 회로구성
  2.4 배종감지 회로도 및 장치
 3. 파종 시험
  3.1 회전속도와 홀 크기에 따른 직파량 검증
  3.2 회전당 직파량 산출
  3.3 직파량 산출을 통한 호퍼용량 설정
 4. 결론
 References

• 이학성((재)한국탄소융합기술원 융합기술사업단) | Haksung Lee