| 摘要 |
PCT No. PCT/IL97/00014 Sec. 371 Date Sep. 29, 1998 Sec. 102(e) Date Sep. 29, 1998 PCT Filed Jan. 8, 1997 PCT Pub. No. WO97/25696 PCT Pub. Date Jul. 17, 1997A system and method for detecting an intruder into an area to be guarded is provided. The system includes a plurality of detection units, each of the plurality of detection units having at least one infrared sensor and having a first field of view external to and directed generally along the perimeter, and located within the area to be guarded. The infrared sensor may be a passive sensor. The detection units include a camera for recording intrusion within a second field of view and a controller. The controller is responsive to output of the infrared sensor, for determining when an intruder has entered the first field of view, whereupon an operator activates the camera. |
