Foliage penetrating sensor array for intrusion detection
US8542109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2008 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Jun 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2494
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An intrusion detection system that provides foliage penetration is disclosed employing an array of field disturbance transceivers operating at UHF frequencies. The array of transceivers generate a multiplicity of electromagnetic wave fields between nearby units and detect the presence of intruders by detecting disturbances in these fields. The emitted UHF signals used to generate the electromagnetic wave fields are also used to provide the communication link between transceivers in the array and to a control station. The control station facilitates the operation of the array from a remote monitoring site. A unique method of array deployment provides multiple opportunities to detect an intruder and secondarily provides redundant communication links in case of a sensor failure. Automatic means of setting detection thresholds based on environmental conditions assures a high probability of detection along with a low false alarm rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.