| 摘要 |
The invention relates to a method for detecting and monitoring events on a pre-determined territory, comprising the use of at least a directional sensor ( 1, 1', 1 '') and at least a relevant device for moving said at least directional sensor ( 1, 1', 1'' ) with a first canonical rotation about a vertical axis ( 2 ) of an angle between 0° and 360° and a second canonical rotation of an angle (alpha) between 0° and 90° about an horizontal axis perpendicular to the laying direction of said at least one directional sensor ( 1, 1', 1'' ), the method comprising the step: A. dividing said first rotation in a first number of first angular sectors and said second rotation in a second number of second angular sectors so as to divide the territory into ring sectors (RS); the method being characterised in that it further comprises the following steps: B. scanning the whole pre-determined territory, at regular time intervals, in order to individuate alterations of predefined chemical-physical parameters with respect to a set of reference values thereof; C. between the time intervals of step B, scanning the ring sectors (RS) wherein said alterations have been individuated, with at least a first frequency of scanning; the territory being so cyclically scanned by step-by-step directing said at least a directional sensor ( 1, 1', 1'' ) towards one or more of said ring sectors (RS), detection of an event occurring by comparison of detected instantaneous values with a pre-determined set of reference values for one or more chemical-physical parameters in said territory. The invention further relates to an apparatus and a system implementing the method according to the invention.
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