| 主权项 |
1. A method of monitoring a space for armed and dangerous individuals, the method comprising:
(a) obtaining a series of digital images of the space via a first digital camera; (b) detecting a series of ambient noise levels of the space via an electronic noise detecting device; (c) processing the series of images, wherein the processing comprises:
(i) comparing objects in a first image of the series of images to at least one predetermined weapon patterns; and(ii) comparing objects in the first image of the series of images to at least one predetermined human patterns; (d) processing the series of ambient noise levels, wherein the processing comprises:
(i) determining an upper threshold noise level based on the series of ambient noise levels;(ii) comparing a first ambient noise level to the upper threshold noise level; (e) checking for an armed and dangerous individual, wherein the checking comprises:
(i) when a first object in the first image is matched to one of the predetermined weapon patterns, then activating a first alarm criterion;(ii) when a second object in the first image is matched to one of the predetermined human patterns, then activating a second alarm criterion;(iii) when the first ambient noise level exceeds the upper threshold noise level, then activating a third alarm criterion; and (f) triggering an alarm signal, only when all of the first, second and third alarm criteria are simultaneously activated. |
