Portable Device And Method For The Geolocation And Continuous Location Of An Object Moving In A Constrained Environment

• US 20150296342A1
• Filed: 07/19/2012
• Published: 10/15/2015
• Est. Priority Date: 07/22/2011
• Status: Abandoned Application

• Current Assignee: Commissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
• Original Assignee: Commissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
• Inventors: Periquet, Florian, Boukallel, Mehdi, Trehard, Guillaume
• Application Number:
  US14/234,376
• Publication Number:
  US 20150296342A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01C 21/206 specially adapted for indoor navigation
• CPC Class Codes: H04W 4/021 Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
• CPC Class Codes: H04W 4/027 using movement velocity, acceleration information
• CPC Class Codes: H04W 64/006 with additional information processing, e.g. for direction or speed determination

Abstract

The invention includes a portable device and a method for the geolocation and continuous location of an object moving in a constrained environment. This device includes:

• • means to determine the movement speed vector of this object by anemometer reading able to make measurements of relative wind caused by the movement of the object, and to deliver a corresponding signal,
  • means for processing this signal able to calculate the speed vector of this object and its position.

Claims

1. A portable mobile device, which includes:

a device for geolocation and for continuous location this device in a constrained environment, which GPS signals cannot be used, including;

means for anemometric reading of the air flow produced by the moving device, enabling the physical magnitude of the measured wind speed to be transformed into an electrical potential signal or corresponding electrical current signal,

means for processing this signal able to calculate the speed vector of this device and its position.

an integrated display unit for allowing real-time display of this position

3. A device according to claim 1 including a geopositioning device.

4. A device according to claim 1, in which these means for determining a speed vector include at least one airspeed sensor.

5. A device according to claim 4, in which at least one airspeed sensor is colinear with the movement of this object.

6. A device according to claim 4, including means for combining data from this at least one airspeed sensor with data deriving from at least one sensor of the inertial, magnetic, barometric or radio type.

7. A device according to claim 1, in which the means for determining the speed vector use one of the following techniques:

hot-wire measurement,

ultrasound measurement,

pressure gradient measurement.

8. A device according to claim 4, in which the mechanical assembly of each airspeed sensor on the device of the invention is one of the following assemblies:

assembly with open flow,

assembly with directional flow,

assembly with Pitot flow.

10. A device according to claim 1, which is a device of the smartphone/GPS/tablet computer/vehicle/robot type.

11. A device according to claim 1 including a portable device including a unit for displaying the three-dimensional position, and allowing assistance with guidance.

14. A method according to claim 10, which includes a step of combining anemometer reading data with data derived from at least one sensor of the inertial, magnetic, barometric or radio type.

15. A method according to claim 10, including a prior calibration step.

2. (canceled)

9. (canceled)

12. A method for geolocation and continuous location of a mobile device moving in a constrained environment, in which GPS signals cannot be used, which includes:

a step of determining the movement of this device by anemometer reading able to make measurements of the air flow produced by the movement of this device, and to deliver a corresponding signal of an electrical potential signal or corresponding electrical current,

a step of processing this signal able to calculate the speed vector of this device,

a step location of this device by integration of the speed vector,

a step of display of this position.

13. (canceled)