Wireless sensing

• US 20170059365A1
• Filed: 04/25/2016
• Published: 03/02/2017
• Est. Priority Date: 08/24/2015
• Status: Abandoned Application

• Current Assignee: Pabellon, Inc.
• Original Assignee: Pabellon, Inc.
• Inventors: Rubin, Alejandro Victorio, Martin, Robert Thomas
• Application Number:
  US14/999,361
• Publication Number:
  US 20170059365A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01D 5/2006 by influencing the self-induction of one or more coils G01D5/22 takes precedence
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H04B 5/266 One coil at each side, e.g. with primary and secondary coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A device and system for sensing disturbance in a field. A sensor system comprises an RF power source coupled to one or more emitters producing a field. Measuring the coupling between the source and the emitters for example by measuring forward and/or reverse power allows disturbances caused by objects in the field to be detected. Sweeping the operating frequency of the rf source over a frequency range, or making measurements at frequencies within such a range provides for further characterization of any objects within the field. Placing emitters within a structure allows for characterization of the contents of the structure and detection of changes from such characterization.

Claims

1. A sensor system comprising:

a source producing RF power,

a coupler for coupling the RF source to one or more emitters producing a field, the coupler measuring the coupling between the RF source and the emitters,

and

a controller measuring the coupling between the RF source and the emitters to detect changes in the field.

2. The sensor system of claim 1 where the coupler measures forward RF power.

3. The sensor system of claim 1 where the coupler measures reverse RF power.

4. The sensor system of claim 1 where the controller detects changes in the field by detecting changes in the coupler measurements.

5. The sensor system of claim 4 where the changes in the coupler measurements are made at a fixed frequency.

6. The sensor system of claim 4 where the changes in the coupler measurements are made at a plurality of frequencies.

7. The sensor system of claim 4 where the changes in the coupler measurements are made by comparing measurements to measurements made in a known state.

8. The sensor system of claim 1 where the emitters are placed inside a structure for detecting changes made to the contents of the structure.