| 摘要 |
<p>PURPOSE:To prevent a card reader for trespass monitor setting of an occupancy room from being trifled with by general persons. CONSTITUTION:Card readers 2B to 2D are installed in the vicinity of doors in occupancy rooms on respective floors. When an occupant who will go out has his discrimination card read by the card reader and opens the door and closes it within a prescribed time thereafter, trespass monitor of his occupancy room is started. If a trespass sensor SN (for the N-th floor) is operated or the door of the occupancy room is opened to output a door open signal DN during trespass monitor, a trespass signal XN is outputted. When the occupant comes back to open the door and had his discrimination card read by the card reader within a prescribed time, trespass monitor is terminated (released).</p> |
