抄録
This paper performed examination about the safe information by IC tag. IC tag is used now in various fields about product information and history information. However, the next condition is necessary to transmit safe information. 1) Energy condition: A signal that means safety is related to high-energy state (ON signal) while a signal that means danger and failure is related to a low-energy state (OFF signal). This is for the purpose of preventing notification of safety in error for that of danger. 2) Predictability; Allowing the safety-related information to have time necessary for predicting fatal accident and avoiding it beforehand. 3) Unateness: In case of a system trouble, output signal is always held on the safe side (operation-stop side). 4) Robustness: Detection characteristic remains or changes to the safety side even if an environmental change occurs. In this paper, perform basic consideration about safety information and functional information. And perform experimental examination about an information generation condition.
