| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an inexpensive room entrance-leaving management system capable of immediately performing interlock control without producing "control space". <P>SOLUTION: An electric lock controller 4 has a control output port P3 and a state input port P4 in addition to a control output P1 and a state input port P2. The control output port P1 and the state input port P2 are connected to an electric lock 3A through cables L1, L2. The control output port P3 and the state input port P4 are connected to an electric lock 3B through cables L3, L4. When a signal indicating that the electric lock 3A is unlocked is input into the state input port P2, a signal prohibiting the unlocking is sent from the control output port P3 to the electric lock 3B. When a signal indicating that the electric lock 2B is unlocked is input into the state input port P4, a signal prohibiting the unlocking is sent from the control output port P1 to the electric lock 3A. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
