In this work, a simulation study is accomplished to evaluate the effectiveness of EDG-based deadlock avoidance strategy. The considered strategy has been proposed in order to effectively handle conflicts and deadlocks occurring in zone-control AGV (Automated Guided Vehicle) systems. It is based on the prediction of deadlock possibility and prohibition of vehicle movement to the next zone until the deadlock possibility is removed. Throughout simulation study applied to complex network-type AGV path, the considered deadlock-avoidance strategy has provided satisfactory results even under the large number of vehicles.

Abstract
 1. 서론
 2. EDG에 의한 고착방지
  2.1 존 조정
  2.2 EDG
  2.3 유의사이클
  2.4 수준 1에서의 결합사이클
  2.5 고수준 결합사이클
  2.6 고착방지 방안
 3. 시뮬레이션 분석
  3.1 시뮬레이션 모델
  3.2 실험결과
 4. 결론
 후기
 참고문헌

• 임동순(한남대학교 산업시스템공학전공)