| 摘要 |
PURPOSE: A valve information recognition system for a valve using an RFID transponder and an RFID reader is provided to easily acquire necessary valve information at a valve installation field. CONSTITUTION: A recess is formed on a first surface of a tapered head of a valve cap(1). A transponder(11) in which a secondary coil prepares is inserted into the recess. The tapered head is inserted in an internal wall of a key box of a valve key(19). A primary coil of a reader side is installed in the groove. |
