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C-Hook 인식을 위한 RFID 시스템의 적용 가능성에 대한 연구
이창우(Chang Woo Lee),조현우(Hyeonwoo Cho),반성준(Sung Jun Ban),권영신(Yong Sin Kwon),김상우(Sang Woo Kim) 제어로봇시스템학회 2008 제어·로봇·시스템학회 논문지 Vol.14 No.1
C-Hook is a kind of conveyer system for transporting steel coil in POSCO. To detect the current position and the trajectory of steel coils in a plant, C-Hooks are tracked by an inspection system based on PLC. The inspection system detects transit of C-Hooks by monitoring a physical contact between steel bars on a C-Hook and the inspection sensors. However, this system is not reliable because of the abrasion, damage and aging. Moreover, the number of distinguishable C-Hooks is limited by the number of combination of steel bars on a C-Hook. It means that more steel bars should be installed for distinguishing the more C-Hooks. Therefore, the conventional system is difficult and expensive to maintain. To overcome these problems, we propose a C-Hook identification system that uses RFID which is a non-contact type identification system, and evaluate its performance and applicability from a new monitoring program that operates along with the conventional system in the real environment of POSCO.