METHOD AND SYSTEM FOR LOCATING INDIVIDUALS INSIDE A BUILDING
1 Assignment
0 Petitions
Accused Products
Abstract
A system and a method for locating one or more mobile objects in a detection space is disclosed. The system has a number of detection terminals (1) wherein at least the majority of the detection terminals and is equipped with an interrogating and/or answering device (2).
-
Citations
35 Claims
-
1-16. -16. (canceled)
-
17. A method for detecting and/or locating one or more mobile objects in a detection space using a network of mobile objects in a communication network, an AFL technique and measurement between the mobile objects, wherein it comprises at least the following steps:
-
on each or most of the mobile objects performing distance measurements between the mobile objects present in the detection space, on one of the mobile objects or terminals that recover all the distance information using nonlinear processing to inhibit the distance measurement aberrations between two nodes or mobile objects over time, linearly filtering the results of the time inhibiter, combining all the distance information between mobile objects and performing the triangulation, using nonlinear processing to reject the aberrant measurements at the output of the preceding operation, using a linear or nonlinear path estimation filter, on a detection terminal equipped with an interrogating and/or answering device that is fixed in the detection space, collecting calculated position information. - View Dependent Claims (18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
-
-
21. A system for detecting and/or locating one or more mobile objects in a detection space comprising a network of mobile objects in a communication network implementing the AFL technique, wherein the system comprises at least one detection terminal equipped with an interrogating and/or answering device, and in that each mobile object is equipped with transmitter and receiver modules adapted to operate either in interrogating mode or in answering mode, the mobile objects being able to interrogate and answer each other and are adapted to interrogate the detection terminals equipped with an interrogating and/or answering device and wherein a mobile object comprises:
-
a means adapted to perform distance or distance and angle measurements between the mobile objects present in the detection space, a means for using nonlinear processing to inhibit the distance or distance and angle measurement aberrations between two nodes, means adapted to linearly filter the results of the time inhibiter, a module adapted to combine all the distance or distance and angle information between nodes and performing the triangulation, means for using nonlinear processing to reject the aberrant measurements at the output of the combining operation, a linear or nonlinear path estimation filter.
-
Specification