| 摘要 |
An intrusion detection system (100) comprises at least two detectors (101, 102). Each detector (101, 102) is configured to produce a detection output (203, 204). At least one information module is configured to produce metadata (207, 208) that relates to the performance of one or more of the at least two detectors (102, 102). An analysis module (205) is configured to produce a combined alarm signal (206). The combined alarm signal (206) is a function of the plurality of detection outputs (203, 204) from the at least two detectors (101, 102) and the metadata (207, 208). The metadata may include information relating to adverse conditions that reduce detection performance of one or more of the detectors (101, 102). The at least two detectors (101, 102) preferably include at least one video motion detector and a passive infrared detector. |
