Local Positioning System and Method

• US 20080048913A1
• Filed: 11/30/2005
• Published: 02/28/2008
• Est. Priority Date: 12/02/2004
• Status: Abandoned Application

• Current Assignee: Commissariat a L'Energie Atomique (AES Corporation)
• Original Assignee: Commissariat a L'Energie Atomique (AES Corporation)
• Inventors: Fayollas, Philippe, Macias, Francois
• Application Number:
  US11/792,152
• Publication Number:
  US 20080048913A1
• Time in Patent Office: Days
• US Class Current: 342/463
• CPC Class Codes: G01S 5/0247 Determining attitude
• CPC Class Codes: G01S 5/06 Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements G01S5/12 takes precedence
• CPC Class Codes: G01S 5/10 Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements , e.g. omega or decca systemsG01S5/12 takes precedence ; beacons and receivers cooperating therewith G01S1/306, G01S1/308
• CPC Class Codes: G01S 5/14 Determining absolute distances from a plurality of spaced points of known location
• CPC Class Codes: G01S 5/163 Determination of attitude using inertial means G01C9/00; control of attitude G05D1/49

Abstract

The invention relates to a system for local positioning of a set of at least one element (25, 26, 27) in a building (28) including at least one more or less congested room, which includes a network of at least three stationary sources (30, 31, 32), transmitting signals at frequencies above 500 MHz, a network of receivers (35), with at least three receivers being arranged in a known manner on each element, and at least one component for processing signals (36) transmitted by the sources and signals received by the receivers arranged on each element, in order to determine the position of each element.

Claims

1. System for local positioning of a set of at least one element, or object, in a building (28) including at least one more or less congested room, that includes a network of at least three stationary sources, transmitting signals at frequencies above 500 MHz, a network of receivers, with at least three receivers being arranged in a known manner on each element, and at least one component for processing signals transmitted by the sources and signals received by the receivers arranged on each element, in order to determine the position of each element.

2. System according to claim 1, wherein each receiver is an antenna with a minimised phase centre uncertainty.

3. System according to claim 1, wherein the receivers associated with each element are connected to a data acquisition and processing component.

4. System according to claim 3, wherein each data acquisition and processing component is connected to a monitoring component.

5. System according to claim 3, wherein the data acquisition and processing components are connected to local processing components.

6. System according to claim 1, which includes a multiplexer arranged between the receivers and a processing component.

7. System according to claim 1, wherein an optical component equipped with at least three submillimetric antennas is arranged on each element.

8. Method for local positioning of a set of at least one element in a building comprising at least one congested room, including the following steps:

transmitting at least three signals, transmitted by at least three stationary sources, with frequencies above 500 MHz,

receiving said signals by at least three receivers arranged in a known manner on each element,

processing, by at least one processing component, signals transmitted by the sources and signals received by the receivers, in order to determine the position of each element.

9. Method according to claim 8, wherein each receiver is an antenna with a minimised phase centre uncertainty.

10. Method according to claim 8, wherein the receivers associated with each element are connected to a data acquisition and processing component.

11. Method according to claim 10, wherein each data acquisition and processing component is connected to a monitoring component.

12. Method according to claim 10, wherein the data acquisition and processing components are connected to local processing components.

13. Method according to claim 8, which includes a multiplexer arranged between the receivers and a processing component.

14. Method according to claim 8, wherein an optical component equipped with at least three submillimetric antennas is arranged on each element.