Identification and location system for personnel and vehicles
US6816106B1 · kind B1 · utility
Inventor
Key dates
| Filing date | May 6, 2003 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | May 6, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/86
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An identification interrogator is provided for surveillance of objects within an area. The identification interrogator transmits interrogation signals to all objects within the surveillance area, the reflections of which are received back by the interrogator to determine the locations of the objects, and communicates the determined locations to a processing facility to determine their authorized locations. Upon receipt of interrogation signals, some of the objects within the surveillance area broadcast their position and identification to processing facility for correlation with the locations determined by the reflection signals. The locations of other objects are found by correlating the location determined by the reflection signal with a predetermined list of objects and their location within the surveillance area. These may be objects with no means or method to transmit position and identification information, such as rock formations or buildings. If no broadcast information is received from an object and the location of that object determined by the reflection signal cannot be correlated with a predetermined list, than the object has no proper authorization to be within the sur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.